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Genetic variation and natural hybridization among sympatric Actinidia species and the implications for introgression breeding of kiwifruit

文献类型：期刊论文

作者Liu, Yifei1; Liu, Yaling2; Huang, Hongwen1
刊名TREE GENETICS & GENOMES
出版日期2010-10-01
卷号6期号:5页码:801-813
关键词Actinidia Hybridization Introgression breeding Kiwifruit Polyploidy Population genetics
ISSN号1614-2942
DOI10.1007/s11295-010-0293-y
英文摘要The overlapping ranges of closely related species provide a natural setting for the investigation of reticulate hybridization and other evolutionary processes. In the present study, we examined the pattern of genetic variation and interspecific gene flow in seven Actinidia species across ten localities in which sympatry among at least two species occurs. Our results showed that 48.7% of the alleles across the nine nuclear microsatellite loci examined were shared among the seven Actinidia species. Moreover, at the species level, Actinidia chinensis and Actinidia deliciosa exhibited the highest genetic similarity, with a large percentage of shared alleles (P (s) = 81.3%) and a significant consistency between the distribution frequency of their allele sizes (r = 0.859, P = 0.045). Yet, the genetic distinctions between species are obvious except for the species pair A. chinensis and A. deliciosa. Interspecific introgression was detected among the two main species pairs (Actinidia latifolia-Actinidia eriantha and A. chinensis-A. deliciosa), but more apparent in the latter in which 30% of the A. chinensis individuals and 49% of the A. deliciosa individuals showed genetic admixture in the STRUCTURE analysis. Possibly active hybrid zones relating to the two main species pairs were discussed at last, which are expected to pave the way for the introgression breeding of kiwifruit from natural sympatric populations.
资助项目Chinese Academy of Sciences[KSCX2-YW-N-061] ; NSF of China[30771479]
WOS研究方向Forestry ; Genetics & Heredity ; Agriculture
语种英语
WOS记录号WOS:000282169000016
出版者SPRINGER HEIDELBERG
源URL[http://202.127.146.157/handle/2RYDP1HH/923]  
专题中国科学院武汉植物园
通讯作者Huang, Hongwen
作者单位1.Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, S China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China
2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yifei,Liu, Yaling,Huang, Hongwen. Genetic variation and natural hybridization among sympatric Actinidia species and the implications for introgression breeding of kiwifruit[J]. TREE GENETICS & GENOMES,2010,6(5):801-813.
APA Liu, Yifei,Liu, Yaling,&Huang, Hongwen.(2010).Genetic variation and natural hybridization among sympatric Actinidia species and the implications for introgression breeding of kiwifruit.TREE GENETICS & GENOMES,6(5),801-813.
MLA Liu, Yifei,et al."Genetic variation and natural hybridization among sympatric Actinidia species and the implications for introgression breeding of kiwifruit".TREE GENETICS & GENOMES 6.5(2010):801-813.

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来源：武汉植物园

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