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Identification of Green-Revertible Yellow 3(GRY3),encoding a 4-hydroxy-3-methylbut-2-enyl diphosphate reductase involved in chlorophyll synthesis under high temperature and high light in rice

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The Crop Journal 2023年第4期11卷 1171-1180页

作者： Hongzhen Jiang Anpeng Zhang banpu ruan Haitao Hu Rui Guo Jingguang Chen Qian Qian Zhenyu Gao China National Rice Research Institute Chinese Academy of Agricultural SciencesHangzhou 310006ZhejiangChina School of Agriculture Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107GuangdongChina Institute of Crop Breeding and Cultivation Shanghai Academy of Agricultural SciencesShanghai 201403China College of Life and Environmental Sciences Hangzhou Normal UniversityHangzhou 311121ZhejiangChina

Chlorophyll,a green pigment in photosynthetic organisms,is generated by two distinct biochemical pathways,the tetrapyrrole biosynthetic pathway(TBP) and the methylerythritol 4-phosphate(MEP)*** is one of the pathways for isoprenoid synthesis in plants,with 4-hydroxy-3-methylbut-2-enyl diphosphate reductase(HDR) catalyzing its last *** this study,we isolated a greenrevertible yellow leaf mutant gry3 in rice and cloned the GRY3 gene,which encodes a HDR participating in geranylgeranyl diphosphate(GGPP) biosynthesis in chloroplast.A complementation experiment confirmed that a missense mutation(C to T) in the fourth exon of LOC_Os03g52170 causes the gry3 *** high temperature and high light,transcript and protein abundances of GRY3 were reduced in the gry3 *** expression of chlorophyll biosynthesis,chloroplast development,and genes involved in photosynthesis were also *** reactive oxygen species accumulation,cell death,and photosynthetic proteins degradation were occurred in the *** content of GGPP was reduced in gry3 compared with Nipponbare,resulting in a stoichiometric imbalance of tetrapyrrolic chlorophyll *** results shed light on the response of chloroplast biogenesis and maintenance in plants to high-temperature and high-light stress.

关键词： Chloroplast High temperature High light Rice

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Development of nutritious rice with high zinc/selenium and low cadmium in grains through QTL pyramiding

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Journal of Integrative Plant Biology 2020年第3期62卷 349-359页

作者： Chaolei Liu Shilin Ding Anpeng Zhang Kai Hong Hongzhen Jiang Shenglong Yang banpu ruan Bin Zhang Guojun Dong Longbiao Guo Dali Zeng Qian Qian Zhenyu Gao State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China

Enriching zinc(Zn) and selenium(Se) levels,while reducing cadmium(Cd) concentration in rice grains is of great benefit for human diet and *** natural variations in grain Zn, Se, and Cd concentrations in different rice accessions enable Zn/Sebiofortification and Cd-minimization through molecular breeding. Here, we report the development of new elite varieties by pyramiding major quantitative trait loci(QTLs) that significantly contribute to high Zn/Se and low Cd accumulation in grains. A chromosome segment substitution line CSSLGCC7 with the PA64s-derived GCC7 allele in the 93-11 background, exhibited steadily higher Mn and lower Cd concentrations in grains than those of 93-11. This elite chromosome segment substitution line(CSSL) was used as the core breeding material to cross with CSSLs harboring other major QTLs for essential mineral elements, especially CSSLGZC6 for grain Zn concentration and CSSLGSC5 for grain Se concentration. The CSSLGCC7+GZC6 and CSSLGCC7+GSC5 exhibited lower Cd concentration with higher Zn and Se concentrations in grains, respectively. Our study thus provides elite materials for rice breeding targeting high Zn/Se and low Cd concentrations in grains.

关键词： elite breeding pyramid

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Identification of QTLs for Cadmium Tolerance During Seedling Stage and Validation of qCDSL1 in Rice

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Rice science 2021年第1期28卷 81-88页

作者： Ding Shilin Liu Chaolei Shang Lianguang Yang Shenglong Zhang Anpeng Jiang Hongzhen ruan banpu Fang Guonan Tian Biao Ye Guoyou Guo Longbiao Qian Qian Gao Zhenyu Root Biology Center College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China Agricultural Genomics Institute Chinese Academy of Agricultural SciencesShenzhen 518120China Strategic Innovation Platform International Rice Research InstituteDAPO Box 7777Metro Manilathe Philippines

Cadmium(Cd)is a non-essential toxic metal that is harmful to *** investigate the genetic mechanism of Cd tolerance in rice,quantitative trait loci(QTLs)associated with Cd tolerance at the seedling stage were analyzed using a recombinant inbred line(RIL)population derived from a cross between PA64s and 93-11.A total of 36 QTLs associated with shoot length,root length,shoot dry weight,root dry weight and total dry weight were detected in Hangzhou and Lingshui of *** them,15 QTLs were identified under the control condition and 15 QTLs were identified under the Cd stress condition,and 6 QTLs for Cd tolerant coefficient were detected on chromosomes 1,3,7 and *** qCDSL1.1 and qCDSL1.2 were identified in Hangzhou and Lingshui,respectively,and had overlapping intervals on chromosome *** further confirm the effects of qCDSL1.1 and qCDSL1.2,we developed a chromosome segment substitution line(CSSL),CSSLqCDSL1,in 93-11 background harboring qCDSL1.1/qCDSL1.2 from *** to 93-11,CSSLqCDSL1 had increased shoot length under the Cd stress *** results pave the way for further isolation of those genes controlling Cd tolerance in rice and marker-assistant selection of rice elite varieties with Cd tolerance.

关键词： cadmium tolerance recombinant inbred line qCDSL1 rice quantitative trait locus

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水稻剑叶夹角和单株产量的QTL分析

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分子植物育种 2015年第4期13卷 761-768页

作者：洪凯张斌高阳阮班普彭友林马伯军钱前高振宇浙江师范大学化学与生命科学学院金华321000 中国水稻研究所水稻生物学国家重点实验室杭州310006

本研究以光温敏不育系培矮64s(PA64s)为母本、超级籼稻品种93-11为父本构建的132个重组自交系为遗传材料,于2014年分别在陵水和富阳考察了剑叶夹角和单株产量两个性状,并开展QTL定位和分析。结果显示:两地共检测到控制水稻剑叶夹角的QTL... 详细信息

本研究以光温敏不育系培矮64s(PA64s)为母本、超级籼稻品种93-11为父本构建的132个重组自交系为遗传材料,于2014年分别在陵水和富阳考察了剑叶夹角和单株产量两个性状,并开展QTL定位和分析。结果显示:两地共检测到控制水稻剑叶夹角的QTL 41个,其中5个位点在两地均检测到,占总数的12.2%;剑叶夹角在陵水检测到新的QTL位点12个,在富阳检测到新的QTL 17个,贡献率较大的加性效应大都来自培矮64s。两地共检测到单株产量QTL 15个,贡献率较大的加性效应基本都来自93-11。本研究进一步讨论了剑叶夹角对产量和杂交育种的影响,可为水稻理想株型分子设计育种提供理论依据。

关键词：水稻剑叶夹角单株产量 QTL定位

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