Author/Authors :
Wei, J State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Zheng, J Jiangsu Coastal Area Institute of Agricultural Sciences, Yancheng, People Republic of China , Yu, J State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Zhao, D College of Agricultural - Yunnan University, Kunming, Yunnan, People Republic of China , Cheng, Y State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Ruan, M State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Ye, Q State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Yao, Z State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Wang, R State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Zhou, G State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Yang, Y State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Li, Z State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China , Wan, H State key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control - Institute of Vegetables - Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People Republic of China
Abstract :
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 F1 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 F1. Interspecific hybrid
F1 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 F1
had bands from the paternal and maternal accessions, which indicated that F1 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.
