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OsBGLU19 and OsBGLU23 regulate disease resistance to bacterial leaf streak in rice 预览
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作者 LI Bei-bei LIU Ying-gao +4 位作者 WU Tao WANG Ji-peng XIE Gui-rong CHU Zhao-hui DING Xin-hua 《农业科学学报:英文版》 SCIE CAS CSCD 2019年第6期1199-1210,共12页
β-Glucosidase belongs to the glycoside hydrolase I family,which is widely present in multiple species and responds to various biotic and abiotic stresses.In rice,whetherβ-glucosidase is involved in the interaction b... β-Glucosidase belongs to the glycoside hydrolase I family,which is widely present in multiple species and responds to various biotic and abiotic stresses.In rice,whetherβ-glucosidase is involved in the interaction between plants and microorganisms is not clear.In this study,we found that the expression of several genes encodingβ-glucosidases,including OsBGLU19 and OsBGLU23,were upregulated after inoculation with Xanthomonas oryzae pv.oryzicola(Xoc)and downregulated after inoculation with X.oryzae pv.oryzae(Xoo).The respective insertion mutants of OsBGLU19 and OsBGLU23,bglu19 and bglu23,were more susceptible to Xoc infection.The expression of OsAOS2,a key gene in the jasmonic acid signal pathway,was dramatically downregulated after inoculation with Xoc in the bglu19 and bglu23 mutants.Simultaneously,the expression of downstream disease resistance-related genes,such as OsPR1a,OsPR5 and a key transcription factors OsWRKY72 were obviously downregulated.The resistance mediated by OsBGLU19 and OsBGLU23 to bacterial leaf streak is related to disease resistance-related genes above mentioned. 展开更多
关键词 Β-GLUCOSIDASE OsBGLU19 OsBGLU23 ORYZA SATIVA bacterial leaf STREAK
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水稻田相关化合物整理 预览
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作者 王俊锋 《农化市场十日讯》 2019年第14期20-24,共5页
水稻(学名:Oryza sativa)是草本稻属的一种,也是稻属中作为粮食的最主要、最悠久的一种,又称为亚洲型栽培稻。一、分布范围1.全球中国、日本、朝鲜半岛、东南亚、南亚、地中海沿岸、美国东南部、中美洲、大洋洲和非洲部分地区都种植水... 水稻(学名:Oryza sativa)是草本稻属的一种,也是稻属中作为粮食的最主要、最悠久的一种,又称为亚洲型栽培稻。一、分布范围1.全球中国、日本、朝鲜半岛、东南亚、南亚、地中海沿岸、美国东南部、中美洲、大洋洲和非洲部分地区都种植水稻。也就是说,除了南极洲之外,几乎大部分地方都有稻米生长。 展开更多
关键词 水稻田 相关化合物 整理 ORYZA 地中海沿岸 美国东南部 朝鲜半岛 东南亚
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Mapping and genetic validation of a grain size QTL qGS7.1 in rice(Oryza sativa L.) 预览
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作者 XUE Pao ZHANG Ying-xin +7 位作者 LOU Xiang-yang ZHU Ai-ke CHEN Yu-yu SUN Bin YU Ping CHENG Shi-hua CAO Li-yong ZHAN Xiao-deng 《农业科学学报:英文版》 SCIE CAS CSCD 2019年第8期1838-1850,共13页
Grain size is a major determinant of grain weight, which is one of the components of rice yield. The objective o this study was to identify novel, and important quantitative trait loci(QTLs) for grain size and weight ... Grain size is a major determinant of grain weight, which is one of the components of rice yield. The objective o this study was to identify novel, and important quantitative trait loci(QTLs) for grain size and weight in rice. QTLs were mapped using a BC4F4 population including 192 backcross inbred lines(BILs) derived from a backcross between Xiaolijing(XLJ) and recombinant inbred lines(RILs). The mapping population was planted in both Lingshui(Hainan, 2015) and Fuyang(Zhejiang, 2016), with the short-and long-day conditions, respectively. A total of 10 QTLs for grain length, four for grain width, four for the ratio of grain length to width, and 11 for grain weight were detected in at least one environment and were distributed across 11 chromosomes. The phenotypic variance explained ranged from 6.76–25.68%, 14.30–34.03%, 5.28–26.50%, and 3.01–22.87% for grain length, grain width, the ratio of grain length to width, and thousand grain weight, respectively. Using the sequential residual heterozygotes(SeqRHs) method, qGS7.1, a QTL for grain size and weight, was mapped in a 3.2-Mb interval on chromosome 7. No QTLs about grain size and weight were reported in previous studies in this region, providing a good candidate for functional analysis and breeding utilization. 展开更多
关键词 RICE (Oryza sativa L.) quantitative TRAIT LOCI GRAIN size GRAIN weight residual HETEROZYGOTE
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Production of bio-fertilizer from Ascophyllum nodosum and Sargassum muticum(Phaeophyceae) 预览
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作者 SILVA Luís Daniel BAHCEVANDZIEV Kiril PEREIRA Leonel 《海洋湖沼学报(英文)》 SCIE CAS CSCD 2019年第3期918-927,共10页
Oceans and seas form a large body of water that contains a natural biodiversity.For humans,represents a resource,which makes this a point of interest,from researches to improve the economy.Seaweeds produce many compou... Oceans and seas form a large body of water that contains a natural biodiversity.For humans,represents a resource,which makes this a point of interest,from researches to improve the economy.Seaweeds produce many compounds and secondary metabolites that can be used in different fi elds of industry such as food,agricultural,pharmaceutical and health.Even though seaweeds are ancestral resources,recently it was notorious a global interest in knowing more about its potentials,where biotechnology plays an important role in research.Studies showed that seaweed has many bioactive compounds benefi cial to plant development,giving them a great potential as an agricultural fertilizer.Adding seaweeds to the soil provides organic matter,minerals,trace elements,growth plant regulator,metabolites,vitamins,and amino acids and it can work as a soil conditioner.In Portugal,the use of seaweeds for agriculture is important since long time ago.In the past,populations that lived near coastal zone depended on the seaweeds as a family subsistence but,throughout the years,synthetic fertilizers replaced seaweeds.Our work aimed to assess the potential of the extracts obtained from Ascophyllum nodosum and from Sargassum muticum as an agricultural fertilizer.This evaluation was carried out with rice plants(Oryza sativa)and lettuce(Lactuca sativa),in germination bioassays,the culture of rice and lettuce plants in pots,and culture of lettuce plants in hydroponics.For that,seaweed liquid extracts were used in different concentrations in different bioassays.Results show that extracts obtained from two seaweeds,A.nodosum and S.muticum,can be promissory plant biofertilizer at a concentration of 25% and had a positive effect on seed germination,plant development,and production. 展开更多
关键词 FERTILIZER bioactive compounds Ascophyllum nodosum SARGASSUM muticum Oryza SATIVA LACTUCA SATIVA
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Reduction in cadmium accumulation in japonica rice grains by CRISPR/Cas9-mediated editing of OsNRAMP5 预览
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作者 YANG Chang-hong ZHANG Yang HUANG Chao-feng 《农业科学学报:英文版》 SCIE CAS CSCD 2019年第3期688-697,共10页
Cadmium(Cd) intake is harmful to human health and Cd contamination in rice grains represents a severe threat to those consuming rice as a staple food. Knockout of Cd transporters is a promising strategy to reduce Cd a... Cadmium(Cd) intake is harmful to human health and Cd contamination in rice grains represents a severe threat to those consuming rice as a staple food. Knockout of Cd transporters is a promising strategy to reduce Cd accumulation in rice grains. OsNRAMP5 is the major transporter for Cd and manganese(Mn) uptake in rice. Nevertheless, it is uncertain whether knockout of OsNRAMP5 is applicable to produce low Cd rice without affecting plant growth and grain yield. In this study, we adopted CRISPR/Cas9-based gene editing technology to knock out OsNRAMP5 in two japonica varieties. We generated three independent transgene-free osnramp5 mutants and investigated the effect of osnramp5 mutations on Cd accumulation and plant growth. Hydroponic experiments showed that plant growth and chlorophyll content were significantly reduced in osnramp5 mutants at low Mn conditions, and this defective growth in the mutants could be fully rescued by supply of high levels of Mn. Cd and Mn accumulation in both roots and shoots was markedly reduced in the mutants compared to that in wild-type plants. In paddy field experiments, although Cd in flag leaves and grains was greatly reduced in osnramp5 mutants, some agronomic traits including plant height, seed setting rate, and grain number per panicle were affected in the mutants, which ultimately caused a mild reduction in grain yield. The reduced plant growth in the mutants can be attributed to a marked decrease in Mn accumulation. Our results reveal that the manipulation of OsNRAMP5 should be treated with caution: When assessing the applicability of osnramp5 mutants, soil pH and soil water content in paddy fields need to be taken into consideration, since they might affect the levels of available Mn in the soil and consequently determine the effect of the mutation on grain yield. 展开更多
关键词 CADMIUM content CRISPR/Cas9 OsNRAMP5 ORYZA sativa(rice)
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Wx^lv、the Ancestral Allele of Rice Waxy Gene
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作者 Changquan Zhang Jihui Zhu +9 位作者 Shengjie Chen Xiaolei Fan Qianfeng Li Yan Lu Min Wang Hengxiu Yu Chuandeng Yi Shuzhu Tang Minghong Gu Qiaoquan Liu 《分子植物:英文版》 SCIE CAS CSCD 2019年第8期1157-1166,共10页
In rice grains,the Waxy (Wx) gene is responsible for the synthesis of amylose,the most important determinant for eating and cooking quality.The effects of several Wx alleles on amylose content and the taste of cooked ... In rice grains,the Waxy (Wx) gene is responsible for the synthesis of amylose,the most important determinant for eating and cooking quality.The effects of several Wx alleles on amylose content and the taste of cooked rice have been elucidated.However,the relationship between artificial selection and the evolution of various Wx alleles as well as their distribution remain unclear.Here we report the identification of an ancestral allele,Wx^lv,which dramatically affects the mouthfeel of rice grains by modulating the size of amylose molecules.We demonstrated that WF originated directly from wild rice,and the three major Wx alleles in cultivated rice (Wx^b,Wx^a,and Wx^in) differentiated after the substitution of one base pair at the functional sites.These data indicate that the Wx^lv allele played an important role in artificial selection and domestication.The findings also shed light on the evolution of various Wx alleles,which have greatly contributed to improving the eating and cooking quality of rice. 展开更多
关键词 ORYZA SATIVA WAXY EATING and COOKING quality allelic variation artificial selection
Enclosed stigma contributes to higher spikelet fertility for rice(Oryza sativa L.) subjected to heat stress 预览
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作者 Chao Wu Kehui Cui +4 位作者 Qiuqian Hu Wencheng Wang Lixiao Nie Jianliang Huang Shaobing Peng 《作物学报:英文版》 CAS CSCD 2019年第3期335-349,共15页
With global warming, rice plants may be subjected to heat stress more regularly during the heatsensitive flowering stage, causing spikelet sterility and grain yield loss.Stigma exsertion is considered to increase poll... With global warming, rice plants may be subjected to heat stress more regularly during the heatsensitive flowering stage, causing spikelet sterility and grain yield loss.Stigma exsertion is considered to increase pollen reception and promote female reproductive success.The aim of this study was to investigate the role of stigma exsertion on spikelet fertility at high temperatures.Five rice cultivars(Liangyoupeijiu, Shanyou 63, Huanghuazhan, Nagina 22, and IR64) with differing degrees of stigma exsertion were cultivated and exposed to high temperature at anthesis.Heat-tolerant cultivars did not always show a high percentage of spikelets with exserted stigmas, and vice versa.Irrespective of the presence of more pollen grains on exserted stigmas, spikelets with exserted stigmas did not show greater spikelet fertility than spikelets with fewer exserted stigmas or hidden stigmas under heat stress.GA3 application augmented the percentage of spikelets with exserted stigmas;however, it did not increase spikelet fertility under heat stress.Spikelet fertility of whole panicles was negatively correlated with the percentage of spikelets with exserted stigmas, but positively with that with hidden stigmas.Viability of the hidden stigmas was less reduced than that of exserted stigmas under heat stress, suggesting that hidden stigmas have an advantage in maintaining viability.Heat stress delayed anther dehiscence and reduced the viabilities of both exserted stigmas and pollens, thereby causing low spikelet fertility.Together, these results suggest that high spikelet fertility does not depend on stigma exsertion and that enclosed stigma generally contributes to higher spikelet fertility and heat tolerance under high-temperature conditions during flowering in rice. 展开更多
关键词 Heat stress RICE (Oryza sativa L.) SPIKELET FERTILITY STIGMA exsertion STIGMA and POLLEN VIABILITY
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Efficiency of Oryza punctata extract on glucose regulation:Inhibition ofα-amylase andα-glucosidase activities 预览
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作者 Balasubramaniam Jaya Prasad Pazhaniyandi Subramania Sharavanan Rengaraj Sivaraj 《粮油科技:英文版》 2019年第2期44-48,共5页
Red rice(Oryza punctata)is a type of unpolished rice which has higher nutritional value compared to white rice or even polished rice.Owing to higher nutritive content and metabolites,dieticians strongly advise red ric... Red rice(Oryza punctata)is a type of unpolished rice which has higher nutritional value compared to white rice or even polished rice.Owing to higher nutritive content and metabolites,dieticians strongly advise red rice for peoples with metabolic disorders including diabetics.However,the mechanism of action and contents of secondary metabolites in Indian red rice variety not reported scientifically.Therefore,the present study aimed to evaluate its mechanism of action through inhibitory effect ofα-amylase andα-glucosidase.Initially,the whole grain of red rice was macerated with methanol at room temperature for 2 weeks.Then,the dried Keywords:and powdered,samples at different concentration(2.5,10,40,and 80μg/mL)were employed to nd out in vitro inhibitory effects onα-amylase andα-glucosidase.In addition,an enzyme kinetics of effective extract was calculated by Line-weaver Burk(LWB)plot analysis.Moreover,the valuable metabolites in the efficient methanolic extract were quantified using high performance liquid chromatog-raphy(HPLC).The results demonstrated that red rice methanolic extract(RRMEt)possess strong inhibitory activity onα-amylase andα-glucosidase compared with acarbose(P<0.01).The IC50 values of RRMEt was found to be 29.7±7.43μg/mL forα-amylase and 20.4±0.25μg/mL forα-glucosidase.LWB indicated that RRMEt is an uncompetitive inhibitor.Further,HPLC analysis revealed protocatechuic acid,catechin,and chlorogenic acids weremore abundant in RRMEt among the fourteen metabolites.We conclude,the efficiency of enzyme inhibition through the influence of phenolic compounds in RRMEt. 展开更多
关键词 Oryza punctata Α-AMYLASE Α-GLUCOSIDASE High performance liquid chromatography (HPLC) Pigmented rice CATECHIN
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Genome-wide dissection of segregation distortion using multiple inter-subspecific crosses in rice
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作者 Guangwei Li Jiye Jin +5 位作者 Yan Zhou Xufeng Bai Donghai Mao Cong Tan Gongwei Wang Yidan Ouyang 《中国科学:生命科学英文版》 SCIE CAS CSCD 2019年第4期507-516,共10页
Mendelian inheritance can ensure equal segregation of alleles from parents to offspring,which provides fundamental basis for genetics and molecular biology.Segregation distortion(SD)leads to preferential transmission ... Mendelian inheritance can ensure equal segregation of alleles from parents to offspring,which provides fundamental basis for genetics and molecular biology.Segregation distortion(SD)leads to preferential transmission of certain alleles from generation to generation.Such violation of Mendelian genetic principle is often accompanied by reproductive isolation and eventually speciation.Although SD is observed in a wide range of species from plants to animals,genome-wide dissection of such biased transmission of gametes is rare.Using nine inter-subspecific rice crosses,a genome-wide screen for SD loci is performed,which reveals 61 single-locus quantitative trait loci and 194 digenic interactions showing distorted transmission ratio,among which 24 new SD loci are identified.Biased transmission of alleles is observed in all nine crosses,suggesting that SD exists extensively in rice populations.72.13% distorted regions are repeatedly detected in multiple populations,and the most prevalent SD hotspot that observed in eight populations is mapped to chromosome 3.Xian alleles are transmitted at higher frequencies than geng alleles in inter-subspecific crosses,which change the genetic composition of the rice populations.Epistatic interaction contributes significantly to the deviation of Mendelian segregation at the whole-genome level in rice,which is distinct from that in animals.These results provide an extensive archive for investigating the genetic basis of SD in rice,which have significant implications in understanding the reproductive isolation and formation of inter-subspecific barriers during the evolution. 展开更多
关键词 Oryza sativa xian/indica geng/japonica segregation distortion REPRODUCTIVE isolation ALLELE frequency
OstMAPKKK5, a truncated mitogen-activated protein kinase kinase kinase 5, positively regulates plant height and yield in rice 预览
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作者 Yahui Liu Yu Zhu +4 位作者 Xuding Xu Fan Sun Jingshui Yang Liming Cao Xiaojin Luo 《作物学报:英文版》 CAS CSCD 2019年第5期707-714,共8页
Rice(Oryza sativa L.)is a major food crop worldwide.Plant height and yield are important agronomic traits of rice.Several genes regulating plant height and/or yield have been cloned.However,the molecular mechanisms co... Rice(Oryza sativa L.)is a major food crop worldwide.Plant height and yield are important agronomic traits of rice.Several genes regulating plant height and/or yield have been cloned.However,the molecular mechanisms coordinating plant height and yield are not fully characterized.Here,we report a novel gene,OstMAPKKK5 that encodes a truncated variant of a mitogen-activated protein kinase kinase kinase 5(OsMAPKKK5)lacking an intact kinase domain.Transgenic plants overexpressing OstMAPKKK5 in indica cultivar 9311 showed increased plant height,grain length,grain width,1000-grain weight,grain number per main panicle,and yield.Real-time quantitative PCR showed that OstMAPKKK5 was widely expressed in various tissues and developmental stages.The increased plant height and yield were attributed to enlarged cell size.Overexpression of OstMAPKKK5 led to higher contents of various forms of endogenous gibberellin(GA),especially the most common active forms,GA1,GA3,GA4.We concluded that OstMAPKKK5 positively regulates plant height and yield in rice by affecting cell size,and that its underlying mechanism is based on increased endogenous GA content. 展开更多
关键词 OstMAPKKK5 Plant height and yield Cell size GIBBERELLIN Oryza sativa
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Evaluation of Chinese rice varieties resistant to the root-knot nematode Meloidogyne graminicola 预览
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作者 ZHAN Li-ping DING Zhong +6 位作者 PENG De-liang PENG Huan KONG Ling-an LIU Shi-ming LIU Ying LI Zhong-cai HUANG Wen-kun 《农业科学学报:英文版》 SCIE CAS CSCD 2018年第3期621-630,共10页
关键词 根结线虫 米饭 评估 中国 ORYZA 装饰用 随机选择 危险性
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Yield Traits and Associated Marker Segregation in Elite Introgression Lines Derived from O. sativa × O. nivara 预览
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作者 G.HARITHA B.P.M.SWAMY +4 位作者 M.L.NAIK B.JYOTHI B.DIVYA S.MALATHI N.SARLA 《水稻科学:英文版》 CSCD 2018年第1期19-31,共13页
Introgression lines (ILs) derived from interspecific crosses are a source of new genetic variability. A total of 55 ILs derived from two crosses Swarna × O. nivara IRGC81848 (population A) and Swarna × O. ni... Introgression lines (ILs) derived from interspecific crosses are a source of new genetic variability. A total of 55 ILs derived from two crosses Swarna × O. nivara IRGC81848 (population A) and Swarna × O. nivara IRGC81832 (population B) were characterized for yield and yield-related traits/QTLs.Segregation of 103 simple sequence repeat (SSR) markers associated with yield-related QTLs was studied. Population A showed an average of 12.6% homozygous O. nivara alleles and population B showed 10.6%. Interestingly, three SSR markers, RM223, RM128 and RM517, showed conspicuous pattern of segregation. The distribution of parental alleles at three loci RM223, RM128 and RM517 linked to yield-related traits was unique. These markers flanked to several yield-related QTLs. RM223, flanking to qyld8.3, was heterozygous in almost all the 55 ILs except in IL10-3S and IL131S. RM128 on chromosome 1 and RM517 on chromosome 3 were mutually exclusive in 46 out of 55 ILs. These 46 ILs showed either of the marker allele RM128 or RM517 from O. nivara but not both. IL166S had both RM128 and RM517 from O. nivara and the other ILs showed homozygous Swarna allele at RM517 except IL65S.Population structure assigned the 55 ILs to three sub-populations based on their genomic diversity. IL65S,IL166S, IL248S, IL7K and IL250K showed high yields in multi-location trials, and IL248S was released for cultivation as DRRDhan 40. 展开更多
关键词 INTROGRESSION line HETEROZYGOSITY Oryza nivara wild rice population structure yield simple sequence REPEAT
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Starch Digestibility and Functional Properties of Rice Starch Subjected to Gamma Radiation 预览
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作者 Luís Fernando POLESI Silene Bruder Silveira SARMENTO Solange Guidolin CANNIATTI-BRAZACA 《水稻科学:英文版》 CSCD 2018年第1期42-51,共10页
This study investigated the effect of gamma radiation on the digestibility and functional properties of rice starch. Rice cultivars IRGA417 and IAC202 were used for isolation of starch by the alkaline method. Starch s... This study investigated the effect of gamma radiation on the digestibility and functional properties of rice starch. Rice cultivars IRGA417 and IAC202 were used for isolation of starch by the alkaline method. Starch samples were irradiated with 1, 2 and 5 kGy doses of 60Co at a rate of 0.4 kGy/h.A control sample, which was not irradiated, was used for comparison. Irradiated and control starches were characterized by in vitro starch digestibility, total dietary fiber, color, water absorption index, water solubility index, syneresis, swelling factor, amylose leaching, pasting properties and gel firmness.Irradiations changed starch digestibility differently in either cultivar. Increasing radiation doses promoted increase in the color parameter b* (yellow), elevation in the capacity to absorb water, and solubility in water as well as the amylose leached from granules for both cultivars. Pasting properties showed a decrease that was proportional to the dose applied, caused by the depolymerization of starch molecules.Gel firmness of the starch from IAC202 was inversely proportional to the radiation dose applied, whereas for IRGA417, there was a reduction at 5 kGy dose. Rice starches can be modified by irradiation to exhibit different functional characteristics and they can be used by the food industries in products such as soups,desserts, flans, puddings and others. 展开更多
关键词 ORYZA SATIVA irradiation viscosity SWELLING AMYLOSE STARCH DIGESTIBILITY
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Rice Information GateWay: A Comprehensive Bioinformatics Platform for Indica Rice Genomes
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作者 Jia-Ming,Song Yang,Lei +7 位作者 Cheng-Cheng,Shu Yuduan,Ding Feng,Xing Hao,Liu Jia,Wang Weibo,Xie Jianwei,Zhang Ling-Ling,Chen 《分子植物:英文版》 SCIE CAS CSCD 2018年第3期505-507,共3页
关键词 染色体 生物信息学 信息网关 工程数据库 平台 迪卡 栽培变种 ORYZA
Integrative Regulation of Drought Escape through ABA-Dependent and -Independent Pathways in Rice
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作者 Hao Du Fei Huang +3 位作者 Nai Wu Xianghua Li Honghong Hu Lizhong Xiong 《分子植物:英文版》 SCIE CAS CSCD 2018年第4期584-597,共14页
关键词 骆驼毛 织物 干旱 小径 逃跑 相关基因 生理节奏 生命周期
Phenotypic analysis of a dwarf and deformed flower3 (ddf3) mutant in rice (Oryza sativa L.) and characterization of candidate genes 预览
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作者 WANG Yu-peng TANG shuang-qin +2 位作者 WU Zhi-feng SHI Qing-hua WU Zi-ming 《农业科学学报:英文版》 SCIE CAS CSCD 2018年第5期1057-1065,共9页
关键词 基因分析 候选人 米饭 变形 变异 RT-PCR 圆锥花序 ORYZA
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Rice Transcription Factor OsDOFll Modulates Sugar Transport by Promoting Expression of Sucrose Transporter and SWEET Genes
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作者 Yunfei Wu Sang-Kyu Lee +5 位作者 Youngchul Yoo Jinhuan Wei Suk-Yoon Kwon Sang-Won Lee Jong-Seong Jeon Gynheung An 《分子植物:英文版》 SCIE CAS CSCD 2018年第6期833-845,共13页
关键词 蔗糖 运输 基因 制糖 T-DNA ORYZA 圆锥花序 植物
Rapid mapping of candidate genes for cold tolerance in Oryza rufipogon Griff. by QTL-seq of seedlings 预览
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作者 LUO Xiang-dong LIU Jian +6 位作者 ZHAO Jun DAI Liang-fang CHEN Ya-ling ZHANG Ling ZHANG Fan-tao HU Biao-lin XIE Jian-kun 《农业科学学报:英文版》 SCIE CAS CSCD 2018年第2期265-275,共11页
关键词 ORYZA 候选人 基因 幼苗 米饭 多型性 核苷酸 索引图
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N6-Methyladenine DNA Methylation in Japonica and Indica Rice Genomes and Its Association with Gene Expression,Plant Development, and Stress Responses
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作者 Qian Zhang Zhe Liang +13 位作者 Xuean Cui Changmian Ji Yun Li Pingxian Zhang Jingrong Liu Adeel Riaz Pu Yao Min Liu Yunpeng Wang Tiegang Lu Hao Yu Donglei Yang Hongkun Zheng Xiaofeng Gu 《分子植物:英文版》 SCIE CAS CSCD 2018年第12期1492-1508,共17页
N6-Methyladenine (6mA)DNA methylation has recently been implicated as a potential new epigenetic marker in eukaryotes,including the dioot modelArabidopsis thaliana.However,the conservation and divergence of 6mA distri... N6-Methyladenine (6mA)DNA methylation has recently been implicated as a potential new epigenetic marker in eukaryotes,including the dioot modelArabidopsis thaliana.However,the conservation and divergence of 6mA distribution patterns and functions in plants remain elusive.Here we report high-quality 6mA methylomes at single-nucleotide resolution in rice based on substantially improved genome sequences of two rice cultivars,Nipponbare (Nip;Japonica)and 93-11 (Indica).Analysis of 6mA genomic distribution and its association with transcription suggest that 6mA distribution and function is rather conserved between rice and Arabidopsis.We found that 6mA levels are positively correlated with the expression of key stressrelated genes,which may be responsible for the difference in stress tolerance between Nip and 93-11. Moreover,we showed that mutations in DDM1 cause defects in plant growth and decreased 6mA level. Our results reveal that 6mA is a conserved DNA modification that is positively associated with gene expression and contributes to key agronomic traits in plants. 展开更多
关键词 N6-methyladenine 6mA DNA rnethylation Methylome ORYZA SATIVA Stress
A mitochondrial phosphate transporter, McPht gene, confers an acclimation regulation of the transgenic rice to phosphorus deficiency 预览
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作者 HAN Jiao YU Guo-hong +5 位作者 WANG Li LI Wei HE Rui WANG Bing HUANG Sheng-cai CHENG Xian-guo 《农业科学学报:英文版》 SCIE CAS CSCD 2018年第9期1932-1945,共14页
关键词 转基因 磷缺乏 磷酸盐 米饭 环境适应 mRNA ORYZA 相互作用
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