Akpinar A E, Koçal H, Ergül A, Kazan K, Selli M E, Bakir M, Aslantaş S, Kaymak S, Saribaş R
Ankara University, Biotechnology Institute, Ankara, Turkey.
Genet Mol Res. 2010 Feb 23;9(1):324-32. doi: 10.4238/vol9-1gmr727.
Turkey is not only the main apricot (Prunus armeniaca) producer and exporter in the world, but it also has a wide variety of apricot germplasms, owing to its close proximity to the centers of apricot origin. However, there is little or no genetic information on many apricot cultivars that are extensively cultivated in Turkey. We examined the genetic relatedness of 25 Turkish and four exotic apricot cultivars using SSR (simple sequence repeat) markers that were either previously developed for apricot, or for peach (P. persica), a close relative of apricot. Allele diversity (with an average allele number of 6.37) at the SSR loci and the heterozygosity rates (with an average Ho value of 0.648) of these cultivars were found to be higher than in previous studies that used the same loci for apricot. This fact might be attributed to the analysis of different numbers of accessions in the different studies. No correlations were found between the genetic relatedness and the geographical distributions of these cultivars. The data reported here will assist in the prevention of confusions in the apricot propagation and breeding in Turkey. The findings can also be directly compared with other studies that used the same SSR markers on apricot.
土耳其不仅是世界上主要的杏（Prunus armeniaca）生产国和出口国，而且由于其靠近杏的起源中心，拥有各种各样的杏种质资源。然而，对于在土耳其广泛种植的许多杏品种，几乎没有或根本没有遗传信息。我们使用简单序列重复（SSR）标记检测了25个土耳其杏品种和4个外来杏品种的遗传相关性，这些标记要么是之前针对杏开发的，要么是针对与杏亲缘关系较近的桃（P. persica）开发的。这些品种在SSR位点的等位基因多样性（平均等位基因数为6.37）和杂合率（平均Ho值为0.648）高于之前使用相同位点对杏进行的研究。这一事实可能归因于不同研究中分析的材料数量不同。这些品种的遗传相关性与地理分布之间没有相关性。本文报道的数据将有助于防止土耳其杏繁殖和育种中的混淆。这些发现也可以直接与其他使用相同SSR标记对杏进行的研究进行比较。
