Pierantoni L, Cho K-H, Shin I-S, Chiodini R, Tartarini S, Dondini L, Kang S-J, Sansavini S
Dipartimento di Colture Arboree, Università degli Studi di Bologna, Via Fanin 46, 40127 Bologna, Italy.
Theor Appl Genet. 2004 Nov;109(7):1519-24. doi: 10.1007/s00122-004-1775-9. Epub 2004 Aug 31.
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 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.
欧洲梨（Pyrus communis L.）是重要的水果品种之一，但针对其开展的遗传学研究较少。现有证据表明，简单序列重复（SSR）作为分子标记非常有用，因为它们是共显性的、高度多态的、丰富且可重复的。本文报道了在两个欧洲梨群体中100多个苹果SSR标记；随后，共有41个SSR标记定位在杂交品种‘帕斯卡·克拉桑’ב哈罗甜’的遗传连锁图谱上，31个标记定位在‘阿贝·费泰尔’ב马克斯红巴特利特’的图谱上。对于携带两个或更多SSR标记的染色体，已考虑了梨和苹果图谱之间的同线性关系。两张图谱之间的比对支持了两个基因组在连锁群的识别和方向方面的共线性。
