水稻基因组中的微卫星标记及其应用

被引：11

作者：

何风华

机构：

[1] 华南师范大学生命科学学院广东广州

来源：

湖南农业大学学报(自然科学版) | 2004年 / 05期

关键词：

水稻; 微卫星标记; 基因定位; 系谱分析; 分子标记辅助选择;

D O I：

10.13331/j.cnki.jhau.2004.05.025

中图分类号：

S511 [稻];

学科分类号：

0901 ;

摘要：

微卫星又叫简单重复序列,是指以少数几个核苷酸(多数为2～4个)为重复单位组成的串联重复序列,微卫星的两侧为保守的单拷贝序列.不同品种间微卫星基序重复次数的不同而形成了多态性,这种多态性可以通过设计PCR引物扩增检测出来,此即为简单序列长度多态性.微卫星标记具有共显性、高多态性、实验操作简单、快捷和检测结果稳定可靠等优点,是一种理想的分子标记.微卫星标记在水稻基因组中非常丰富,且分布均匀,水稻微卫星标记已发展了2 740多个.微卫星标记在水稻分子标记连锁图的构建、基因(QTL)定位、系谱分析和分子标记辅助选择、遗传多样性研究和种质鉴定等许多方面得到了广泛应用.

引用

页码：488 / 492

页数：5

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