Dissection of genetic overlap of salt tolerance QTLs at the seedling and tillering stages using backcross introgression lines in rice
文献类型: 外文期刊
作者: Zang JinPing;Sun Yong;Wang Yun;Yang Jing;Li Fang;Zhou YongLi;Zhu LingHua;Xu JianLong;Jessica, Reys;Mohammadhosein, Fotokian;Li ZhiKang
作者机构:
关键词: rice;salt tolerance (ST);quantitative trait loci (QTL);genetic overlap
期刊名称: SCIENCE IN CHINA SERIES C-LIFE SCIENCES
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: QTLs for salt-tolerance (ST) related traits at the seedling and tillering stages were identified using 99 BC2F8 introgression lines (IL) derived from a cross between IR64 (indica) as a recurrent parent and Bi-nam (japonica) from Iran as the donor parent.Thirteen QTLs affecting survival days of seedlings (SDS),score of salt toxicity of leaves (SST),shoot K~+ concentration (SKC) and shoot Na~+ concentration (SNC) at the seedling stage and 22 QTLs underlying fresh weight of shoots (FW),tiller number per plant (TN) and plant height (PH) at the tillering stage were identified.Most QTLs detected at the tillering stage showed obvious differential expression to salt stress and were classified into three types based on their differential behaviors.Type I included 11 QTLs which were expressed only under the non-stress condition.Type II included five QTLs expressed in the control and the salt stress conditions,and three of them (QPh5,QPh8 and QTn9) had similar quantity and the same direction of gene effect,suggesting their expression was less influenced by salt stress.Type III included six QTLs which were detectable only under salt stress,suggesting that these QTLs were apparently induced by the stress.Thirteen QTLs affecting trait difference or trait stability of ILs between the stress and non-stress conditions were identified and the Binam alleles at all loci except QPh4,QTn2 and QFw2a decreased trait difference.The three QTLs less influenced by the stress and 13 QTLs affecting trait stability were considered as ST QTLs which contributed to ST.Comparing the distribution of QTLs detected at the seedling and tillering stages,most (69%) of them were genetically independent.Only four were the same or adjacent regions on chromosomes 1,2,8 and 11 harboring ST QTLs detected at the two stages,suggesting that partial genetic overlap of ST across the two stages occurs.It is likely,therefore,to develop ST rice variety for both stages by pyramiding of ST QTLs of different stages or selection against the overlapping QTLs between the two stages via marker-assisted selection (MAS).
分类号: Q1
- 相关文献
作者其他论文 更多>>
-
The commercial PRRSV attenuated vaccine can be a potentially effective live trivalent vaccine vector
作者:Yang Li;Yumiao Wang;Xiuxiu Pei;Yongshuai Wu;Shao Chen;Han Weng;Yang Jing;Zhiqian Ma;Zhiwei Li;Zifang Zheng;Yingtong Feng;Lele Xu;Xuyang Guo;Xiao Liu;Jianwu Zhang;Haixue Zheng;Shuqi Xiao
关键词:Infectious clone;Insertion;Marker gene;Multivalent vaccines;PRRSV;Vaccine vector
-
A chimeric strain of porcine reproductive and respiratory syndrome virus 2 derived from HP-PRRSV and NADC30-like PRRSV confers cross-protection against both strains
作者:Yang Li;Yumiao Wang;Xiuxiu Pei;Shao Chen;Yang Jing;Yongshuai Wu;Zhiqian Ma;Zhiwei Li;Zifang Zheng;Yingtong Feng;Lele Xu;Xiao Liu;Xuyang Guo;Haixue Zheng;Shuqi Xiao
关键词:chimeric PRRSV;cross-protection;genetically engineered vaccine;HP-PRRSV;infectious clone;NADC30-like PRRSV;Porcine reproductive and respiratory syndrome (PRRS)
-
Genome-Wide Association Study of Cooked Rice Textural Attributes and Starch Physicochemical Properties in indica Rice
作者:Deng Bowen;Zhang Yanni;Zhang Fan;Wang Wensheng;Xu Jianlong;Zhang Yu;Bao Jinsong
关键词:cooking and eating quality;genome-wide association study;rice;Waxy gene
-
Recent Advances to Enhance Nutritional Quality of Rice
作者:Sundus Zafar;Xu Jianlong
关键词:gene editing;genetic engineering;nutritional quality;omics;quantitative trait locus;rice
-
The reduction of tea quality caused by irrational phosphate application is associated with anthocyanin metabolism
作者:Hua Zhang;Chunlei Li;Kailing Wei;Meiya Liu;Yuanzhi Shi;Xiangde Yang;Li Fang;Jianyun Ruan;Qunfeng Zhang
关键词:
-
Genetic characterization and pathogenicity of a novel recombinant PRRSV from lineage 1, 8 and 3 in China failed to infect MARC-145 cells
作者:Yang Li;Dian Jiao;Yang Jing;Yuan He;Weiguo Han;Zhiwei Li;Zhiqian Ma;Yingtong Feng;Shuqi Xiao
关键词:Cell tropism;NADC30-like;Pathogenicity;Porcine reproductive and respiratory syndrome virus (PRRSV);Recombination
-
Genetic dissection of heterosis of indica–japonica by introgression line, recombinant inbred line and their testcross populations
作者:Yang Wenqing;Zhang Fan;Zafar Sundus;Wang Junmin;Lu Huajin;Naveed Shahzad;Lou Jue;Xu Jianlong
关键词: