植物遗传资源学报2025，Vol.26Issue(1)：27-42,16.DOI:10.13430/j.cnki.jpgr.20240301001
桂西地区秋海棠属种质资源调查与种群状况
Investigation and Population Status of Begonia Germplasm Resources in Western Guangxi
摘要
Abstract
China is one of the important distribution centers for Begonia,with the Guangxi karst mountains representing a particularly concentrated area for sect.Coelocentrum.The distribution characteristics of these species are defined by a high diversity,small populations,scattered distribution,and fragile habitats.In recent years,human activities have increasingly interfered with the natural habitats of wild Begonia populations.In order to further understand the diversity,distribution characteristics and population status of Begonia species in Guangxi,an in-depth survey was conducted from 2017 to 2022 in the western cities including Chongzuo,Baise and Hechi.This survey focused on 66 Begonia species(including 53 officially published species or subspecies and 13 suspected new species)across nearly 140 wild populations.The study primarily recorded the habitats and growth conditions,and analyzed the data in conjugation with the literature and herbarium specimens.The findings revealed that while the majority of wild populations were in good condition of growth and regeneration,human activities,especially infrastructure development,tourism expansion,and artificial collection,have had certain impacts on some wild populations,with a few at risk of extinction.The resources of Begonia in western Guangxi are extremely rich,including some species that have yet been discovered or published,and there are many taxa with high ornamental value and development potential,especially sect.Coelocentrum.Based on the survey of the distribution and growth conditions of wild Begonia resources in western Guangxi,this study summarized the overall distribution characteristics and diversity,and proposed suggestions on how to further develop and utilize of these resources while ensuring their protection.关键词
秋海棠属/桂西地区/野生资源/侧膜组/开发利用Key words
Begonia/Western Guangxi/wild resources/sect.Coelocentrum/development and utilization引用本文复制引用
陶大燕,关世凯,周锦业,闫海霞,宋倩,郎校安..桂西地区秋海棠属种质资源调查与种群状况[J].植物遗传资源学报,2025,26(1):27-42,16.基金项目
广西创新驱动发展专项(桂科AA17204045-6) （桂科AA17204045-6）
广西农业科学院基本科研业务专项(桂农科2021JM115,2021YT135,2023YM114) （桂农科2021JM115,2021YT135,2023YM114）
青秀山管理委员会科学研究项目(QXS2021-01)Guangxi Innovation-driven Development Project(Guike AA17204045-6) （QXS2021-01）
Basic Scientific Research Projects of Guangxi Academy of Agricultural Sciences(Guinongke 2021JM115,2021YT135,2023YM114) （Guinongke 2021JM115,2021YT135,2023YM114）
Qingxiushan Management Committee Scientific Research Project(QXS2021-01) （QXS2021-01）
