文献类型： 外文期刊

作者： Wei, J. ¹ ; Zheng, J. ² ; Yu, J. ¹ ; Zhao, D. ³ ; Cheng, Y. ¹ ; Ruan, M. ¹ ; Ye, Q. ¹ ; Yao, Z. ¹ ; Wang, R. ¹ ; Zhou, G. ¹ ; Yang ¹ ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Vegetables, State Key Lab Breeding Base Zhejiang Sustainable, Hangzhou 310021, Zhejiang, Peoples R China

2.Inst Agr Sci, Jiangsu Coastal Area, Yancheng, Peoples R China

3.Yunnan Univ, Coll Agr, Kunming, Yunnan, Peoples R China

关键词： Gene transfer; Interspecific hybridization; Introgression breeding; Morphological descriptors

期刊名称：JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY （ 影响因子：1.098； 五年影响因子：1.348 ）

ISSN： 1680-7073

年卷期： 2019 年 21 卷 3 期

页码：

收录情况： SCI

摘要： Wild pepper (Capsicum frutescens L.) could be a source of variation to improve cultivated pepper due to its unique traits with adapting challenges caused by adversity. Interspecific hybridization has been used as an effective way of pepper introgression breeding, which transfers genes of interest from wild relatives to cultivated crops. Here, eight fertile hybrids F-1 were produced from pepper (Capsicum annuum L.) and the wild relative (C. frutescens), as female and male, respectively, by interspecific hybridization. Interspecific hybrids were identified using conventional morphological descriptors and SSR molecular markers. The results showed that significant differences in agronomic traits existed among cultivated pepper, wild relatives, and interspecific hybrid F-1. Interspecific hybrid F-1 presented intermediate values, although they were closer to the wild species in most of the agronomic traits. Analysis of SSR markers clearly showed that interspecific hybrid F-1 had bands from the paternal and maternal accessions, which indicated that F-1 hybrid was heterozygous. Our results provide hybrid for breeder to transfer genes of interest from wild relative, C. frutescens, to cultivated pepper, which is an important step for introgression breeding.