文章摘要
王章英,唐朝臣,江炳志,张湘博,房伯平.1978—2016 年广东甘薯育成品种系谱与亲本利用分析[J].广东农业科学,2021,48(8):29-37
查看全文    HTML 1978—2016 年广东甘薯育成品种系谱与亲本利用分析
Analysis on Pedigree and Parent Use of Sweetpotato Cultivars Bred in Guangdong Province from 1978 to 2016
  
DOI:10.16768/j.issn.1004-874X.2021.08.004
中文关键词: 甘薯  育成品种  系谱分析  亲本  地方品种
英文关键词: sweetpotato  bred cultivar  pedigree analysis  parents  local cultivar
基金项目:国家重点研发计划项目(2019YFD1000700,2019YFD1000701);财政部和农业农村部:国家现代农业产业技术体系项目;广东省现代农业产业技术体系创新团队项目(2020KJ111,2021KJ111)
作者单位
王章英,唐朝臣,江炳志,张湘博,房伯平 广东省农业科学院作物研究所 / 广东省农作物遗传改良重点实验室广东 广州 510640 
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中文摘要:
      【目的】了解广东甘薯育成品种遗传背景与品种间亲缘关系,为甘薯育种亲本选择和杂交组合有 效配制提供参考。【方法】利用 1978—2016 年广东省育成的通过国家鉴(认)定或省审定的 57 个甘薯品种基 本信息,分析广东省育成甘薯品种基本概况、亲本来源、系谱关系及衍生品种情况。【结果】广东甘薯育成品 种主要利用品种间定向杂交(59.6%)或集团杂交(29.8%)选育而成,育成品种类型以鲜食型和鲜食兼用型为主、 占 86.0%;57 个甘薯育成品种溯源直接亲本 61 个,原始亲本 42 个,其中禺北白、湛薯 75-57、普薯 3 号和新竹 头作为原始亲本,使用频数较高,衍生品种数 14 个以上;广东省甘薯育成品种系谱主要以地方品种或早期广东 省本地育成种及其衍生品种为骨干组成,可划分为 4 个脉系:湛薯 75-57 脉系、广揭脉系、广普脉系和其他脉系; 广东育成品种作为直接亲本已先后培育出 50 个甘薯新品种在生产上推广应用。【结论】广东甘薯育成品种所用 亲本呈现明显的“广东特色”,遗传基础较窄,为扩大甘薯品种遗传基础,在广泛引进收集国内外优异甘薯种 质资源拓宽亲本的同时,亟需对甘薯种质资源尤其是地方品种资源进行精准鉴评以挖掘优异种质,培育优质亲本。
英文摘要:
      【Objective】In order to understand the genetic background and genetic relationship of sweetpotato cultivars and provide references for parents selection and effective cross combination in sweetpotato breeding, the sweetpotato cultivars bred in Guangdong Province from 1978 to 2016 were investigated and summarized. 【Method】Based on the information of 57 sweetpotato cultivars, which passed the national identification or provincial approval, bred in Guangdong Province from 1978 to 2016, their profiles, parental source, pedigree and derived cultivars were analyzed.【Result】Mainly bred by purposeful hybridization between varieties(59.6%)or polycrossing(29.8%), Guangdong sweetpotato cultivars mainly include fresh food and fresh food and forage dual-purpose types, accounting for 86.0%. 57 cultivars could be ultimately traced to 61 direct parents and 42 original parents. Yubeibai, Zhanshu 75-57, Pushu 3 and Xinzhutou were the most frequently used original parents, and over 14 cultivars were derived from them. The pedigree of sweetpotato cultivars bred in Guangdong Province was mainly composed of landraces or early local bred cultivars and their derivatives, which could be clearly divided into four families: Zhanshu 75-57 family, Guangjie family, Guangpu family and other family. These released sweetpotato cultivars have been used as direct parents, and 50 new sweetpotato cultivars have been bred, some of which have been widely used in Guangdong Province, even the whole country.【Conclusion】The sweetpotato cultivars bred in Guangdong Province and their parents showed obvious “Guangdong features”. In order to broaden the genetic basis of sweetpotato cultivars, it is necessary to continue to widely introduce and collect excellent sweetpotato germplasm to Guangdong Province, and accurately identify and evaluate the germplasm resources especially local germplasm resources for the breeding of superior parents.
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