梨AFLP标记遗传图谱构建及果实相关性状的QTL定位

被引：66

作者：

张瑞萍 ^{[1
]}

吴俊 ^{[1
]}

李秀根 ^{[2
]}

杨健 ^{[2
]}

王龙 ^{[2
]}

王苏珂 ^{[2
]}

张绍铃 ^{[1
]}

机构：

[1] 南京农业大学梨工程技术研究中心

[2] 中国农业科学院郑州果树研究所

来源：

园艺学报 | 2011年 / 38卷 / 10期

关键词：

梨; AFLP; 遗传图谱; 数量性状; 果实性状;

D O I：

10.16420/j.issn.0513-353x.2011.10.021

中图分类号：

S661.2 [梨];

学科分类号：

090201 [果树学];

摘要：

以‘八月红’×‘砀山酥梨’的97株F1群体为试材,利用AFLP技术构建梨(2n=34)的分子遗传连锁图谱,共获得17个连锁群,包含209个标记位点,覆盖基因组1506.3cM,平均图距为7.21cM;用区间作图法进行梨果实可溶性固形物、单果质量、果实纵径、果实横径和纵横径比等5个性状的QTL定位,其中在LG1连锁群上定位可溶性固形物含量QTL1个;在LG6、LG7和LG11连锁群上定位单果质量QTL各1个;在LG7连锁群上定位果实横径的QTL1个;在LG6和LG7连锁群上定位果实纵径的QTL各1个;在LG1和LG8连锁群上定位果形指数的QTL各1个。各QTL位点的LOD值在2.50～4.14之间,可解释11.4%～36.4%的表型变异。

引用

页码：1991 / 1998

页数：8

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