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大豆科学  2007 

大豆光合性状QTL的初步定位

DOI: 10.3969/j.issn.1000-9841.2007.01.003, PP. 6-10

Keywords: 大豆,光合性状,数量性状位点(QTL),重组自交系(RIL)

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Abstract:

光合速率的提高对大豆产量改良具有重要作用。本研究利用波高和南农94-156杂交所构建的RIL群体对4个光合性状QTL进行了初步定位。结果表明,大豆籽粒与光合速率间存在微弱的正相关,而4个光合性状间除光合速率与胞间CO2浓度外均为极显著的正相关。分别检测到1、2、1和2个QTL位点与光合速率(O连锁群)、气孔导度(A1和D1b+W连锁群)、胞间CO2浓度(G连锁群)和蒸腾速率(H和M连锁群)有关,相互间均不共位,前3个QTL解释的表型变异略低于10%,而后3个QTL可解释表型变异的10%以上。

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