The chloroplast genome comparative characteristic of artificial breeding tree,a case about Broussonetia kazinoki×Broussonetia papyrifera  

作　　者：WAN ZHANG GUIYAN YANG YUNLIN ZHAO ZHENGGANG XU HUANG HUIMIN JIAKANG ZHOU 

机构地区：[1]Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant,Central South University of Forestry and Technology,Changsha,410004,China [2]Hunan Urban and Rural Ecological Planning and Restoration Engineering Research Center,Hunan City University,Yiyang,413000,China [3]Key Laboratory of National Forestry and Grassland Administration on Management of Western Forest Bio-Disaster,College of Forestry,Northwest A&F University,Yangling,712100,China

出　　处：《BIOCELL》2022年第3期803-819,共17页生物细胞（英文）

基　　金：supported by Hunan Provincial Natural Science Foundation of China[Grant No.2019JJ50027];China Postdoctoral Science Foundation[Grant No.2020M683592];Key Projects of National Forestry and Grassland Bureau[Grant No.201801];Scientific Innovation Fund for Post-graduates of Central South University of Forestry and Technology[Grant No.CX20191004].

摘　　要：Broussonetia kazinoki×Broussonetia papyrifera(ZJGS)is a hybrid species in Moraceae family,which has a very complicated hybrid origin.The excellent characteristics of fast growth,strong soil and water conservation ability,high leaf protein content and stem fiber content in ZJGS make it both ecological benefits in the mining area and economically valuable.This study aims to further understand ZJGS and other Moraceae taxa through the ZJGS chloroplast(cp)genome structure and the comparison with 12 closely related Moraceae species.Among the 13 Moraceae species,the cp genome length of seven Broussonetia species(ranges from 160,239 bp to 162,594 bp)is larger than that of six Morus species(ranges from 158,459 bp to 159,265 bp).Among the 77 shared protein-coding genes(PCGs)in Moraceae species,the obvious positive selection of Ka/Ks ratios acted on petD and rpl16 genes of B.kazinoki and B.papyrifera,respectively.Phylogenetic analysis based on shared PCGs from 28 species shows that ZJGS is closely related to maternal B.kazinoki.These findings provide data support for the origin of ZJGS hybridization and provide genomic resources for future ZJGS resource development and molecular breeding.

关 键 词：Broussonetia kazinoki Broussonetia papyrifera MORACEAE Phylogenetic relationship Maternal inheritance 

分 类 号：Q94[生物学—植物学]