Observation of the Disomic Inheritance of Four Allelic Pairs in the Octoploid Cultivated Strawberry
Observation of the Disomic Inheritance of Four Allelic Pairs in the Octoploid Cultivated Strawberry
复制标题
八倍体栽培草莓四个等位基因对二体遗传的观察
DOI：
10.21273/hortsci.48.8.948
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发表时间：
2013
期刊：
影响因子：
1.9
通讯作者：
M. Kunihisa
中科院分区：
文献类型：
--
作者：
M. Honjo;S. Yui;M. Kunihisa
虽然最近的遗传研究表明，四倍体栽培草莓，草莓3ananassa Duch.，虽然是高度二倍化的，但是还没有直接和清楚地描述四个等位基因对的行为的报道。本研究利用两个高度多态性的简单重复序列标记，证明了三色鱼F.3ananassa中4个等位基因对的二体遗传。通过对“夏公主”（含有标记FxaHGA 02 P13的8个不同等位基因）3“Dekoruju”（含有该标记的另外4个不同等位基因）的后代进行基因分型，可在“夏公主”中鉴定出4个等位基因对。以类似的方式，四个等位基因对可以鉴定为品种Ohishi-shikinari和标记EMFvi 136。这项研究的结果提供了直接的证据，至少有一部分的二倍体草莓基因组是完全二倍体化的，基因组组成假设AAA#A#BB B #B#是可能的，建议由其他最近的遗传研究。
Although recent genetic studies suggest that octoploid cultivated strawberry, Fragaria 3ananassa Duch., is highly diploidized, there have been no reports that directly and clearly described the behavior of four allelic pairs. In this study, we demonstrated the disomic inheritance of four allelic pairs inF. 3ananassa by using two highly polymorphic simple sequence repeat markers. By genotyping the offspring of 'Summer-princess' (containing eight distinct alleles of marker FxaHGA02P13) 3 'Dekoruju' (containing another four distinct alleles for this marker), four allelic pairs could be identified in 'Summer-princess'. In a similar way, four allelic pairs could be identified for cultivar Ohishi-shikinari and marker EMFvi136. The results of this study provide direct evidence that at least part of the octoploid strawberry genome is fully diploidized and that the genome composition hypothesis AAA#A#BBB#B# is possible as suggested by other recent genetic studies.