文献类型： 外文期刊
作者： Feng, Xue 1 ; Liu, Lili 1 ; Li, Zhigang 1 ; Sun, Fang 1 ; Wu, Xiaoyuan 1 ; Hao, Dongyun 3 ; Hao, Huaiqing 1 ; Jing, Hai-C 1 ;
作者机构： 1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jilin Acad Agr Sci, Inst Agr Biotechnol, Changchun 130124, Jilin, Peoples R China
4.Chinese Acad Sci, Inst Bot, Engn Lab Grass Based Livestock Husb, Beijing 100093, Peoples R China
关键词： Autophagy and auxin pathways; interaction; leaf senescence; maize yield; population genetics; transcriptomic profiling
期刊名称：JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：6.992； 五年影响因子：7.86 ）
ISSN： 0022-0957
年卷期： 2021 年 72 卷 10 期
页码：
收录情况： SCI
摘要： Leaf senescence is important for crop yield as delaying it can increase the average yield. In this study, population genetics and transcriptomic profiling were combined to dissect its genetic basis in maize. To do this, the progenies of an elite maize hybrid Jidan27 and its parental lines Si-287 (early senescence) and Si-144 (stay-green), as well as 173 maize inbred lines were used. We identified two novel loci and their candidate genes, Stg3 (ZmATG18b) and Stg7 (ZmGH3.8), which are predicted to be members of autophagy and auxin pathways, respectively. Genomic variations in the promoter regions of these two genes were detected, and four allelic combinations existed in the examined maize inbred lines. The Stg3(Si-144)/Stg7(Si-1)(44) allelic combination with lower ZmATG18b expression and higher ZmGH3.8 expression could distinctively delay leaf senescence, increase ear weight and the improved hybrid of NIL-Stg3(Si-144)/Stg7(Si-1)(44) significantly reduced ear weight loss under drought stress, while opposite effects were observed in the Stg3(Si-)(287)/Stg7(Si-)(287) combination with a higher ZmATG18b expression and lower ZmGH3.8 expression. Thus, we identify a potential interaction between autophagy and auxin which could modulate the timing of maize leaf senescence.
- 相关文献
作者其他论文 更多>>
-
Molecular dynamics simulation reveals DNA-specific recognition mechanism via c-Myb in pseudo-palindromic consensus of mim-1 promoter
作者：Weng, Jinru;Shen, Jinkang;Liu, Hongsen;Xu, Yuzi;Wang, Shan;Yang, Shuo;Hao, Dongyun
关键词：c-Myb; DNA-specific recognition mechanism; Molecular dynamics simulation; DNA major groove width; Electrostatic potential; DNA(sic)(sic)(sic)(sic)(sic)(sic)(sic); (sic)offspring(sic)(sic)(sic)(sic)拟; DNA(sic)沟(sic)(sic); 静(sic)
-
ZmNRT1.1B (ZmNPF6.6) determines nitrogen use efficiency via regulation of nitrate transport and signalling in maize
作者：Cao, Huairong;Liu, Zhi;Jia, Zhongtao;Shi, Yandong;Kang, Kai;Peng, Wushuang;Wang, Zhangkui;Yuan, Lixing;Guo, Jia;Liu, Xiangguo;Hao, Dongyun;Chen, Limei;Neuhaeuser, Benjamin;Wang, Yong
关键词：Nitrate transport; nitrate signalling; nitrogen use efficiency (NUE); ZmNRT1.1B; ZmNLP3.1; grain yield
-
Genetic architecture of embryogenic callus induction in maize from the perspective of population genomics
作者：Dai, Liqiang;Han, Siping;Zhang, Yan;Hao, Dongyun
关键词：Embryogenic callus; Maize inbred lines; Genome-wide association study (GWAS); Allelic variation; Candidate genes
-
QTL Mapping of Somatic Regeneration-Related Traits in Maize
作者：Dai, Liqiang;Zhang, Yan;Han, Siping;Hao, Dongyun
关键词：cell totipotency; embryogenic callus (EC); regenerative capacity; maize; candidate genes
-
Engineered chimeric insecticidal crystalline protein improves resistance to lepidopteran insects in rice (Oryza sativa L.) and maize (Zea mays L.)
作者：Liu, Yang;Han, Siping;Chen, Ziqi;Yin, Yuejia;Liu, Qing;Yan, Weiyu;Song, Xinyuan;Guo, Jia;Liu, Xiangguo;Hao, Dongyun;Yang, Shuo;Xi, Jinghui;Zhao, Fangfang
关键词：
-
Resequencing 250 Soybean Accessions: New Insights into Genes Associated with Agronomic Traits and Genetic Networks
作者：Yang, Chunming;Hao, Dongyun;Yan, Jun;Jiang, Shuqin;Wang, Xiangfeng;Li, Xia;Min, Haowei
关键词：Agronomic trait; GWAS; Network; Resequence; Soybean
-
QTL Mapping of Fusarium Ear Rot Resistance in Maize
作者：Wen, Jing;Shen, Yanqi;Wang, Ziyu;Han, Siping;Li, Shijie;Yang, Chunming;Hao, Dongyun;Zhang, Yan;Xing, Yuexian
关键词：Fusarium ear rot; Fusarium verticillioides; maize; mapping; quantitative trait locus
