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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Cai, Z. X. Yu, M. L. Shen, Z. J. Ma, R. J. Zhang, Z. |
| Spatial Coverage | China |
| Description | Country affiliation: China Author Affiliation: Shen ZJ ( College of Horticulture, Nanjing Agricultural University, Nanjing, China.); Ma RJ ( Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing, China.); Cai ZX ( Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing, China.); Yu ML ( Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing, China.); Zhang Z ( College of Horticulture, Nanjing Agricultural University, Nanjing, China zhangzh@njau.edu.cn.) |
| Abstract | The fruit peach originated in China and has a history of domestication of more than 4000 years. Numerous local cultivars were selected during the long course of cultivation, and a great morphological diversity exists. To study the diversity and genetic background of local peach cultivars in China, a set of 158 accessions from different ecological regions, together with 27 modern varieties and 10 wild accessions, were evaluated using 49 simple sequence repeats (SSRs) covering the peach genome. Broad diversity was also observed in local cultivars at the SSR level. A total of 648 alleles were amplified with an average of 13.22 observed alleles per locus. The number of genotypes detected ranged from 9 (UDP96015) to 58 (BPPCT008) with an average of 27.00 genotypes per marker. Eight subpopulations divided by STRUCTURE basically coincided with the dendrogram of genetic relationships and could be explained by the traditional groups. The 8 subpopulations were juicy honey peach, southwestern peach I, wild peach, Buddha peach + southwestern peach II, northern peach, southern crisp peach, ornamental peach, and Prunus davidiana + P. kansuensis. Most modern varieties carried the genetic backgrounds of juicy honey peach and southwestern peach I, while others carried diverse genetic backgrounds, indicating that local cultivars were partly used in modern breeding programs. Based on the traditional evolution pathway, a modified pathway for the development of local peach cultivars in China was proposed using the genetic background of subpopulations that were identified by SSRs. Current status and prospects of utilization of Chinese local peach cultivars were also discussed according to the SSR information. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 1 |
| Volume Number | 14 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2015-01-15 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Biological Evolution Genetic Variation Microsatellite Repeats Genetics Prunus Persica Alleles Ecotype Genetics, Population Geography Heterozygote Pedigree Phylogeny Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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