Genetic diversity of pepper (Capsicum spp.) germplasm resources in China reflects selection for cultivar types and spatial distribution

doi:10.1016/S2095-3119(16)61364-3

CORC > 中国农业科学院 > 蔬菜花卉研究所

	Genetic diversity of pepper (Capsicum spp.) germplasm resources in China reflects selection for cultivar types and spatial distribution
	Zhang Xiaomin 1; Zhang Zhenghai 1; Gu Xiaozhen 1; Mao Shengli 1; Li Xixiang 1; Chadoeuf Joel 2; Palloix Alain 2; Wang Lihao 1; Zhang Baoxi 1
刊名	Journal of Integrative Agriculture
	2016
卷号	15 期号:9 页码:1991-2001
关键词	Capsicum spp. germplasm collection genetic diversity population structure microsatellite
ISSN号	2095-3119
DOI	10.1016/S2095-3119(16)61364-3
英文摘要	Pepper (Capsicum spp.) is an important vegetable crop in the world. Now the pepper in China contributes one-third of the world’s peppers production. Genetic diversity of the pepper germplasm of China is expected interesting to know. To explore the structure of genetic diversity in Chinese pepper germplasm resources and possible relationship with cultivar types or geographic origin, we sampled and compared 372 GenBank pepper accessions (local cultivars and landraces) from 31 provinces, autonomous regions and municipalities of China and 31 additional accessions from other countries. These accessions were genotyped using 28 simple sequence repeat (SSR) markers spanning the entire pepper genome. We then investigated the genetic structure of the sampled collection using model-based analysis in STRUCTURE v2.3.4 and examined genetic relationships by the unweighted pair-group method of mathematical averages (UPGMA) in MEGA. In addition to geographic origin, we evaluated eight plant and fruit traits. In total, 363 alleles were amplified using the 28 SSR primers. Gene diversity, polymorphism information content and heterozygosity of the 28 SSR loci were estimated as 0.09–0.92, 0.08–0.92 and 0.01–0.34, respectively. The UPGMA cluster analysis clearly distinguished Capsicum annuum L. from other cultivated pepper species. Population structure analysis of the 368 C. annuum accessions uncovered three genetic groups which also corresponded to distinct cultivar types with respect to the plant and fruit descriptors. The genetic structure was also related to the geographic origin of the landraces. Overall results indicate that genetic diversity of Chinese pepper landraces were structured by migration of genotypes followed by human selection for cultivar types in agreement with consumption modes and adaptation to the highly diversified agro-climatic conditions.
学科主题	园艺
语种	中文
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101490]
专题	蔬菜花卉研究所
作者单位	1.Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetable Genetics and Physiology, Ministry of Agriculture, Beijing, 100081 2.Genetique et Amelioration des Fruits et Legumes, France, Montfavet, 84143
推荐引用方式 GB/T 7714	Zhang Xiaomin,Zhang Zhenghai,Gu Xiaozhen,et al. Genetic diversity of pepper (Capsicum spp.) germplasm resources in China reflects selection for cultivar types and spatial distribution[J]. Journal of Integrative Agriculture,2016,15(9):1991-2001.
APA	Zhang Xiaomin.,Zhang Zhenghai.,Gu Xiaozhen.,Mao Shengli.,Li Xixiang.,...&Zhang Baoxi.(2016).Genetic diversity of pepper (Capsicum spp.) germplasm resources in China reflects selection for cultivar types and spatial distribution.Journal of Integrative Agriculture,15(9),1991-2001.
MLA	Zhang Xiaomin,et al."Genetic diversity of pepper (Capsicum spp.) germplasm resources in China reflects selection for cultivar types and spatial distribution".Journal of Integrative Agriculture 15.9(2016):1991-2001.