数字农科院2.0

Diversity In Fruit Traits Among D.ifferent Apricot (Prunus Armeniaca) P opulations From Different Regions

文献类型： 外文期刊

作者： Zhang, Q. P.;Xu, M.;Zhang, Y. J.;Zhang, Y. P.;Liu, N.;Liu, W. S.;Ma, X. X.

作者机构：

关键词： apricot; germplasm resources; clustering; genetic diversity

期刊名称： XVI INTERNATIONAL SYMPOSIUM ON APRICOT BREEDING AND CULTURE

ISSN： 0567-7572

年卷期： 2018 年 1214 卷

页码：

摘要： A total of 447 accessions of apricot (Prunus armeniaca L.) from germplasm resources of different geographical origins were collected from the Xiongyue National Germplasm Repository for Plums and Apricots. They were used for phenotypic diversity analysis. Twenty-five traits of apricot fruits were recorded, including fruit uniformity, shape, apex, stem suppression, suture, symmetry, ground color, cover color, color scale, pubescence, flesh color, flesh type, fiber, fruit juice, flavor, aroma, stone adherence to flesh, stone shape, kernel flavor, time to fruiting, fruit size, soluble solid content, sugar content, acid content, and vitamin C content. The results showed that apricot germplasm resources from northern China have high diversity, and Beijing and Hebei Province had the highest diversity. Cluster analysis, used to investigate the inter-relationships of these populations, indicated that the population from the southern region of the Tianshan Mountains in Xinjiang Province was highly differentiated from the others. Analysis of population genetic structure revealed that genetic variation mainly resided among individuals within populations. The present study showed that the European population had the poorest genetic diversity. The North China subgroup of the North China population (Beijing, and the northern region of Hebei Province groups, and South Liaoning subgroup) had high diversity.

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