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小麦西昌69的EMS诱变系蛋白品质变异分析及种质筛选
Authors
于利伟
刘树伟
+8 more
李慧敏
漆小泉
王中华
羊阳
谢彦周
郭雷
陈爱艳
高欣
Publication date
1 January 2020
Publisher
Abstract
为探讨甲基磺酸乙酯(ethyl methane sulfonate,EMS)诱变在小麦品质育种中的价值,了解EMS诱变小麦籽粒品质变异状况,筛选优良的变异材料,对1667份西昌69的EMS诱变系M_6代籽粒的蛋白质含量、淀粉含量、面筋含量、容重、面团形成时间和稳定时间等多个籽粒性状进行了测定,初步分析了诱变系的品质变化,并通过SDS-PAGE电泳法及高效液相色谱技术分析了其籽粒高分子量麦谷蛋白亚基(HMW-GS)的组分和不溶性蛋白聚合体的含量。共筛选到101份HMW-GS变异诱变系,分别为亚基缺失、亚基增生、亚基置换和亚基缺失且置换4种变异类型。其中,有28份诱变系的蛋白质含量、面筋含量、形成时间、稳定时间等多个籽粒品质性状及不溶性蛋白聚合体含量优于亲本,且千粒重相对稳定,可以作为优质种质资源用于小麦品质育种
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of Botany,Chinese Academy Of Sciences
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Last time updated on 09/06/2022