Characterisation and transferability of apple SSRs to two European pear F1 populations
Characterisation and transferability of apple SSRs to two European pear F1 populations
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DOI：
10.1007/s00122-004-1775-9
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发表时间：
2004-11-01
影响因子：
5.4
通讯作者：
Sansavini, S
中科院分区：
文献类型：
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作者：
Pierantoni, L;Cho, KH;Sansavini, S
欧洲梨（Pyrus communis L.）是一种重要的水果品种，对其进行的遗传研究很少。现有证据表明，简单序列重复序列（SSR）具有共显性、高多态性、丰富和可重复性等特点，是一种非常有用的分子标记。本文报道了欧洲梨两个居群中100多个苹果SSR标记；共有41个SSR标记被定位在“Passe Crassane”x“Harrow Sweet”杂交的遗传连锁图谱上，31个SSR标记被定位在“Abbe x Fetel”x“Max Red Bartlett”的遗传连锁图谱上。对于携带两个或两个以上SSR标记的染色体，梨和苹果图谱之间存在同工关系。这两个图谱之间的比对支持了两个基因组在鉴定和连锁群定位方面的共线性。
European pear (Pyrus communis L.) is among the important fruit species for which only few genetic studies have been carried out. Available evidence indicates that simple sequence repeats (SSR) are very useful as molecular markers because they are codominant, highly polymorphic, abundant and reproducible. The present paper reports more than 100 apple SSR markers in two populations of European pear; a total of 41 SSR markers were then positioned on a genetic linkage map of the cross 'Passe Crassane' x 'Harrow Sweet' and 31 in the map 'Abbe x Fetel' x 'Max Red Bartlett'. Syntenic relationships between pear and apple maps have been considered for the chromosomes carrying two or more SSR markers. The alignment among the two maps supports the colinearity of the two genomes with respect both to identification and to orientation of the linkage groups.