作物学报 ›› 2014, Vol. 40 ›› Issue (08): 1386-1391.doi: 10.3724/SP.J.1006.2014.01386
荐红举,魏丽娟,李加纳,徐新福,谌利,刘列钊*
JIAN Hong-Ju,WEI Li-Juan,LI Jia-Na,XU Xin-Fu,CHEN Li,LIU Lie-Zhao*
摘要:
种子硫苷在甘蓝型油菜中有着重要的生物学作用和经济价值。本文旨在通过复合区间作图法利用高密度SNP遗传连锁图谱定位种子硫苷的QTL。用近红外扫描获得种子硫苷含量,每株系扫描3次,取平均值。所用的高密度SNP遗传图谱包含2795个SNP多态性标记位点,图谱总长1832.9 cM,相邻标记间平均距离为0.66 cM。定位了2年的种子硫苷含量QTL,其中有5个在2年内被重复检测到,分别分布在A03、A09和C02染色体上,LOD阈值在2.90~10.40之间。这些QTL在2011和2012年试验中分别解释了56.9%和55.1%的表型变异。另外有5个QTL仅在其中一年被检测到,这些QTL能够解释4.1%~7.9%的表型变异,QTL阈值在2.53~3.83之间。
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