The gametocidal chromosome as a tool for chromosome manipulation in wheat
The gametocidal chromosome as a tool for chromosome manipulation in wheat
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DOI：
10.1007/s10577-006-1100-3
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发表时间：
2007-01-01
影响因子：
2.6
通讯作者：
Endo, T. R.
中科院分区：
文献类型：
--
作者：
Endo, T. R.
许多外来染色体已经从相关的野生种（山羊草属）引入普通小麦（小麦属）。一些外来染色体具有独特的基因，通过在缺乏它们的配子中引起染色体断裂来确保它们在宿主中的存在。这种染色体或基因，称为杀配子（Gc）染色体或Gc基因，来自不同的基因组（C、S、S1和Mg），并且属于三个不同的同源异型群2、3和4。在普通小麦的整倍体和异附加系中，C和M g基因组的Gc基因诱导温和的或半致死的染色体突变。因此，诱导的染色体重排已经在携带小麦和外来（黑麦和大麦）染色体缺失或小麦-外来易位的小麦原种中鉴定和建立。本文综述了小麦杀配子染色体的研究进展，重点介绍了它们作为染色体操作工具的特点。
Many alien chromosomes have been introduced into common wheat ( the genus Triticum) from related wild species ( the genus Aegilops). Some alien chromosomes have unique genes that secure their existence in the host by causing chromosome breakage in the gametes lacking them. Such chromosomes or genes, called gametocidal (Gc) chromosomes or Gc genes, are derived from different genomes ( C, S, S l and M g) and belong to three different homoeologous groups 2, 3 and 4. The Gc genes of the C and M g genomes induce mild, or semi-lethal, chromosome mutations in euploid and alien addition lines of common wheat. Thus, induced chromosomal rearrangements have been identified and established in wheat stocks carrying deletions of wheat and alien ( rye and barley) chromosomes or wheat-alien translocations. The gametocidal chromosomes isolated in wheat to date are reviewed here, focusing on their feature as a tool for chromosome manipulation.