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Inbreeding and coancestry of the major commercial fresh market peach cultivars in China

文献类型： 外文期刊

作者： Ma, Ruijuan 1 ; Yu, Mingliang 1 ; Du, Ping 1 ; Shen, Zhijun 1 ; Byrne, David H. 2 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Hort, Nanjing 102206, Peoples R China

2.Texas A&M Univ, Dept Hort Sci, College Stn, TX 77843 USA

关键词： Prunus persica;low acid;white flesh;fruit breeding;germplasm;pedigree;male sterility

期刊名称：PROCEEDINGS OF THE VITH INTERNATIONAL PEACH SYMPOSIUM

ISSN： 0567-7572

年卷期： 2006 年 713 期

页码：

收录情况： SCI

摘要： Thirty cultivars were selected for pedigree analysis based on their importance as breeding stock or in commercial production in China. An inbreeding analysis indicated that the mean inbreeding coefficients were 0.012 for Case I (unknown parentage assumed to be to an unrelated genotype) and 0.153 for Case II (open pollination assumed to be selfed). This is much lower than that of the freestone peach cultivars of the eastern USA and that of peach and nectarine cultivars from University of Florida breeding program. The mean coefficient of coancestry among the 30 cultivars was also much lower than that reported for peaches of the Eastern United States. This indicates that main commercial fresh market Chinese peach cultivars are less inbred and have a greater genetic diversity than the fresh market cultivars used in the eastern USA.

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