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Partial Dominance, Overdominance, Epistasis and QTL by Environment Interactions Contribute to Heterosis in Two Upland Cotton Hybrids

文献类型： 外文期刊

作者： Shang, Lianguang 1 ; Wang, Yumei 2 ; Cai, Shihu 1 ; Wang, Xiaocui 1 ; Li, Yuhua 1 ; Abduweli, Abdugheni 1 ; Hua, Jinpi 1 ;

作者机构： 1.China Agr Univ, Beijing Key Lab Crop Genet Improvement, Dept Plant Genet & Breeding, Key Lab Crop Heterosis & Utilizat,Minist Educ, Beijing 100193, Peoples R China

2.Hubei Acad Agr Sci, Res Inst Cash

关键词： QTLs;heterosis;partial dominance;overdominace;epistasis;Upland cotton

期刊名称：G3-GENES GENOMES GENETICS （ 2020影响因子：3.154； 五年影响因子：3.369 ）

ISSN： 2160-1836

年卷期： 2016 年 6 卷 3 期

页码：

收录情况： SCI

摘要： Based on two recombinant inbred line (RIL) populations, two corresponding backcross (BC) populations were constructed to elucidate the genetic basis of heterosis in Upland cotton (Gossypium hirsutum L.). The yield, and yield components, of these populations were evaluated in three environments. At the single-locus level, 78 and 66 quantitative trait loci (QTL) were detected using composite interval mapping in RIL and BC populations, respectively, and 29 QTL were identified based on mid-parental heterosis (MPH) data of two hybrids. Considering all traits together, a total of 50 (64.9%) QTL with partial dominance effect, and 27 (35.1%) QTL for overdominance effect were identified in two BC populations. At the two-locus level, 120 and 88 QTL with main effects (M-QTL), and 335 and 99 QTL involved in digenic interactions (E-QTL), were detected by inclusive composite interval mapping in RIL and BC populations, respectively. A large number of QTL by environment interactions (QEs) for M-QTL and E-QTL were detected in three environments. For most traits, average E-QTL explained a larger proportion of phenotypic variation than did M-QTL in two RIL populations and two BC populations. It was concluded that partial dominance, overdominance, epistasis, and QEs all contribute to heterosis in Upland cotton, and that partial dominance resulting from single loci and epistasis play a relatively more important role than other genetic effects in heterosis in Upland cotton.

  • 相关文献

[1]Genetic analysis and QTL mapping of oil content and seed index using two recombinant inbred lines and two backcross populations in Upland cotton. Shang, Lianguang,Abduweli, Abdugheni,Hua, Jinping,Wang, Yumei.

[2]Association mapping analysis of fiber yield and quality traits in Upland cotton (Gossypium hirsutum L.). Mulugeta Seyoum Ademe,Du, Xiongming,Jia, Yinhua,Shoupu He,Zhaoe Pan,Junling Sun,Qinglian Wang,Hongde Qin,Jinhai Liu,Hui Liu,Jun Yang,Dongyong Xu,Jinlong Yang,Zhiying Ma,Jinbiao Zhang,Zhikun Li,Zhongmin Cai,Xuelin Zhang,Xin Zhang,Aifen Huang,Xianda Yi,Guanyin Zhou,Lin Li,Haiyong Zhu,Baoyin Pang,Liru Wang,Yinhua Jia,Xiongming Du.

[3]Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton. Lianguang Shang,Lingling Ma,Yumei Wang,Ying Su,Xiaocui Wang,Yuhua Li,Abdugheni Abduweli,Shihu Cai,Fang Liu,Kunbo Wang,Jinping Hua. 2016

[4]Dynamic QTL mapping for plant height in Upland cotton (Gossypium hirsutum). Shang, Lianguang,Abduweli, Abdugheni,Cai, Shihu,Liu, Fang,Wang, Kunbo,Wang, Yumei.

[5]Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton. Lianguang Shang,Yumei Wang,Xiaocui Wang,Fang Liu,Abdugheni Abduweli,Shihu Cai,Yuhua Li,Lingling Ma,Kunbo Wang,Jinping Hua. 2016

[6]QTLs Analysis and Validation for Fiber Quality Traits Using Maternal Backcross Population in Upland Cotton. Ma, Lingling,Zhao, Yanpeng,Shang, Lianguang,Hua, Jinping,Wang, Yumei. 2017

[7]Overexpression of Heteromeric GhACCase Subunits Enhanced Oil Accumulation in Upland Cotton. Cui, Yupeng,Liu, Zhengjie,Zhao, Yanpeng,Li, Le,Wu, Han,Xu, Suixi,Hua, Jinping,Liu, Zhengjie,Wang, Yumei,Huang, Yi.

[8]Seedling root QTLs analysis on dynamic development and upon nitrogen deficiency stress in Upland cotton. Shang, Lianguang,Cai, Shihu,Ma, Lingling,Wang, Yumei,Abduweli, Abdugheni,Wang, Meiyan,Wang, Xiaocui,Liang, Qingzhi,Hua, Jinping,Wang, Yumei.

[9]Overexpression of GhDof1 improved salt and cold tolerance and seed oil content in Gossypium hirsutum. Su, Ying,Liang, Wei,Liu, Zhengjie,Zhao, Yanpeng,Ijaz, Babar,Hua, Jinping,Wang, Yumei.

[10]Identification of stable QTLs controlling fiber traits properties in multi-environment using recombinant inbred lines in Upland cotton (Gossypium hirsutum L.). Shang, Lianguang,Liang, Qingzhi,Wang, Xiaocui,Abduweli, Abdugheni,Ma, Lingling,Cai, Shihu,Hua, Jinping,Wang, Yumei,Wang, Kunbo.

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