白菜基因组导入芥菜的远缘杂交及后代分离偏向性

doi:10.6048/j.issn.1001-4330.2021.07.015

新疆农业科学 ›› 2021, Vol. 58 ›› Issue (7): 1306-1315.DOI: 10.6048/j.issn.1001-4330.2021.07.015

• 园艺特产·微生物·草业 • 上一篇下一篇

白菜基因组导入芥菜的远缘杂交及后代分离偏向性

李祥升^1,2, 常立春², 陈海旭², 武剑², 梁建丽², 林润茂², 郭新磊², 高杰¹, 王晓武²

1.新疆农业大学林学与园艺学院, 乌鲁木齐 830052;
2.中国农业科学院蔬菜花卉研究所, 北京 100081

收稿日期:2020-06-01 发布日期:2021-07-27
通信作者: 王晓武(1966- ),男,江西于都人,研究员,博士生导师,研究方向为蔬菜作物分子遗传学与基因组学,(E-mail)wangxiaowu@caas.cn;高杰(1963- ),男,天津人,教授,博士生导师,研究方向为蔬菜栽培与生理,(E-mail)ofc111@163.com
作者简介:李祥升(1993-),男,河南商丘人,硕士研究生,研究方向为蔬菜遗传育种,(E-mail)18345967811@163.com
基金资助:
新疆维吾尔自治区园艺学重点学科建设项目(2016-10758-37);国家特色蔬菜产业技术体系特色蔬菜育种技术与方法岗位专家(CARS-24-A-03)

Segregation Distortion of Progeny of Distant Hybridization of Brassica juncea Introduced into Chinese Cabbage Genome

LI Xiangsheng^1,2, CHANG Lichun², CHEN Haixu², WU Jian², LIANG Jianli², LIN Runmao², GUO Xinlei², GAO Jie¹, WANG Xiaowu²

1. College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052,China;
2. Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081,China

Received:2020-06-01 Published:2021-07-27
Correspondence author: WEANG Xiaowu (1966- ), male, native place: Yudu, Jiangxi Province, researcher,research field: Molecular genetics and genomics of vegetable crops, (E-mail)wangxiaowu@caas.cn GAO Jie (1963- ), male,native place: Tianjin,professor, research field: vegetable cultivation and physiology, (E-mail)ofc111@163.com
Supported by:
Xinjiang Uyghur Autonomous Region Key Discipline Fund of Horticulture Science ( 2016 - 10758 - 3) ; National characteristic vegetable industry technical system characteristic vegetable breeding technology and method post expert ( CARS-24-A-03 )

摘要/Abstract

摘要： 【目的】研究远缘杂交将结球白菜的A基因组导入包心芥菜,利用高分辨率熔解曲线(high-resolution melting, HRM)结合InDel标记辅助选择技术,筛选出保留白菜基因较多的回交后代,改良包心芥的结球性,丰富包心芥菜的种质资源。【方法】利用幼胚培养技术辅助6份包心芥菜与2份结球白菜进行远缘杂交和回交,选取20个InDel标记追踪白菜A基因组全部染色体,从192的BC₁单株中筛选出白菜A基因组标记占比较高的单株。田间调查筛选结球性近似结球白菜的单株。【结果】远缘杂交结合幼胚培养获得了9个种间杂种组合和14个BC₁群体。筛选并获得203个在全基因组分布均匀的可区分白菜与芥菜的HRM-InDel标记;利用20个InDel标记追踪192株BC₁单株的白菜基因,分离群体偏向传递白菜基因组,有54棵单株标记含量超过90%。【结论】幼胚培养技术可提高白菜与芥菜远缘杂交后回交的结实率,并可加快育种进程;筛选出了白菜基因组占比较高的组合和单株;分离群体明显偏向于传递白菜基因。

关键词: 结球白菜; 包心芥菜; 远缘杂交; InDel标记; 偏分离

Abstract: 【Objective】 Introduce the A genome of Chinese cabbage into core mustard by distant hybridization, and use high-resolution melting curve (HRM) combined with InDel marker-assisted selection technology to screen out the most preserved cabbage Crossing offspring, with a view to improving the nodularity of core mustard and enriching the germplasm resources of core mustard.【Methods】 Using immature embryo culture technology to assist 6 servings of core mustard and 2 servings of Chinese cabbage for distant hybridization and backcrossing, 20 InDel markers were selected to track all chromosomes of the Chinese cabbage A genome, and screened from the 192 BC₁ single plants, the single plants with a high percentage of Chinese cabbage A genome markers. Furthermore, through field investigations, single plants with similar heading to cabbage were selected for further research.【Results】 Nine interspecific hybrid combinations and 14 BC₁ populations were obtained by remote hybridization combined with immature embryo culture. 203 HRM-InDel markers that can be uniformly distributed throughout the genome to distinguish between cabbage and core mustard were screened and obtained; 20 InDel markers were used to track the cabbage genes of 192 BC₁ single plants. The mark content exceeds 90%, which accumulates materials for further research work.【Conclusion】 Immature embryo culture technology can improve the seed setting rate of the backcross of Chinese cabbage and core mustard, and can speed up the breeding process; the combination and single plant with a high proportion of Chinese cabbage genome were selected; the study found that the isolated population was significantly biased towards transmission Cabbage gene.

Key words: chinese cabbage; mustard; distant hybridization; InDel marker; segregation distortion

中图分类号:

S634.1

李祥升, 常立春, 陈海旭, 武剑, 梁建丽, 林润茂, 郭新磊, 高杰, 王晓武. 白菜基因组导入芥菜的远缘杂交及后代分离偏向性[J]. 新疆农业科学, 2021, 58(7): 1306-1315.

LI Xiangsheng, CHANG Lichun, CHEN Haixu, WU Jian, LIANG Jianli, LIN Runmao, GUO Xinlei, GAO Jie, WANG Xiaowu. Segregation Distortion of Progeny of Distant Hybridization of Brassica juncea Introduced into Chinese Cabbage Genome[J]. Xinjiang Agricultural Sciences, 2021, 58(7): 1306-1315.

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白菜基因组导入芥菜的远缘杂交及后代分离偏向性

Segregation Distortion of Progeny of Distant Hybridization of Brassica juncea Introduced into Chinese Cabbage Genome

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