| 陆地棉光合相关性状的QTL定位分析 |
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| 引用本文： | 唐丽媛,李兴河,张素君,王海涛,刘存敬,张香云,张建宏.陆地棉光合相关性状的QTL定位分析[J].作物杂志,2018,34(5):85-6. |
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| 作者姓名： | 唐丽媛 李兴河 张素君 王海涛 刘存敬 张香云 张建宏 |
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| 作者单位： | 河北省农林科学院棉花研究所/农业部黄淮海半干旱区棉花生物学与遗传育种重点实验室/国家棉花改良中心河北分中心,050051,河北石家庄 |
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| 基金项目： | 国家重点研发计划项目(2016YFD0101415);河北省科技计划项目(16226303D);河北省农林科学院科学技术研究与发展计划项目(A2015070105) |
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| 摘 要： | 光合作用是棉花产量的主要物质来源。本研究以高光效陆地棉冀优861和低光效陆地棉新陆早25号为亲本组配的196个F2单株为作图群体,利用SSR（Simple Sequence Repeat）标记构建陆陆杂交遗传连锁图谱,共有30个标记位点连锁,包含4个连锁群,全长244.4cM。利用QTL IciMapping 4.1软件的完备区间作图法对冀优861×新陆早25号F2:3家系的光合相关性状进行QTL作图分析,共定位到光合相关5个性状的10个QTLs,其中1个光合速率QTL和1个胞间CO2浓度QTL分别定位在D3和D7染色体上。本研究为棉花光合相关性状QTL的精细定位及分离克隆打下基础,为聚合棉花高光效分子标记辅助育种提供理论依据。
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| 关 键 词： | 棉花 光合性状 叶绿素含量 SSR标记 QTL定位 |
| 收稿时间： | 2018-03-12 |
QTL Mapping for Photosynthesis Related Traits in Upland Cotton |
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| Tang Liyuan,Li Xinghe,Zhang Sujun,Wang Haitao,Liu Cunjing,Zhang Xiangyun,Zhang Jianhong.QTL Mapping for Photosynthesis Related Traits in Upland Cotton[J].Crops,2018,34(5):85-6. |
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| Authors: | Tang Liyuan Li Xinghe Zhang Sujun Wang Haitao Liu Cunjing Zhang Xiangyun Zhang Jianhong |
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| Institution: | Institute of Cotton, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Biology and Genetic Improvement of Cotton in Huanghuaihai Semiarid Area, Ministry of Agriculture/National Cotton Improvement Center Hebei Branch, P.R. China, Shijiazhuang 050051, Hebei, China |
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| Abstract: | Photosynthesis provides a major material basis for the yield formation of cotton. A genetic linkage map was constructed for an F2 population of 196 cotton plants derived from a cross between two upland cotton parental lines of Jiyou 861 and Xinluzao 25 with SSR (Simple Sequence Repeat) markers. The map included 30 markers distributing in 4 linkage groups, full length 244.4cM. Based on the inclusive composite interval mapping method with QTL IciMapping 4.1, 10 QTLs (quantitative trait locus) were identified in the F2:3 population, including three QTLs for photosynthetic rates, two for stomatal conductance, one for intercellular CO2 concentration, one for transpiration rate and three for chlorophyll content, in which there were one photosynthetic rate QTL and one intercellular CO2 concentration QTL were located on chromosomes of D3 and D7, respectively. The research lays the foundation for fine mapping and cloning of QTL for photosynthesis related traits in cotton and provide a theoretical basis for combining molecular marker assisted breeding with high photosynthetic efficiency in cotton. |
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| Keywords: | Cotton Photosynthesis trait Chlorophyll content SSR marker QTL mapping |
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