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首页 > 过刊浏览>2020年第21卷第1期 >20-25. DOI:10.13430/j.cnki.jpgr.20191024002
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芸薹属作物的渗入杂交与种质资源创新
作者:
作者单位:

华中农业大学植物科学技术学院/作物遗传改良国家重点实验室

基金项目:

国家自然科学基金（39300081,39770467, 30070413，30571033，30771207）;国家重点研发项目(2016YFD0100202)


Introgressive Hybridization and Germplasm Innovation in Brassica Crops
Author:
Affiliation:

College of Plant Science and Technology, National Key Lab of Crop Genetic Improvement, Huazhong Agricultural University

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)(No.39300081,39770467, 30070413,30571033,30771207)；National Key Research and Development Program of China (Grant No. 2016YFD0100202)

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    摘要:

    通过人工合成的种间杂种或异源多倍体与栽培种连续回交与选择，可使近缘种或野生种的目标性状与基因渗入作 物。本文总结了作者课题组三十年间所开展的芸薹属栽培种与几个亲缘关系较远的物种间的族间杂交、特异的细胞遗传学行 为及种质资源创建。由于这些族间杂交中发生父本染色体的部分消除，产生的杂种具有母本栽培种的全部或大部分染色体、 附加少数的外源染色体或染色体片段，经回交与自交后获得的渗入系表现父本的一些特征、遗传与表观遗传发生变化、但恢 复母本的染色体数。讨论了此类亲缘关系较远的杂交在创建新种质资源方面的应用前景。

    Abstract:

    By successive backcrossing and subsequent selection of the synthetic interspecific hybrids and allopolyploids with the cultivated species, the introgression of targeted chromosomal segments from the relatives becomes feasible. In this review, the intertribal hybridizations between the cultivated Brassica species and several distant relatives, cytogenetic behaviors and generation of new germplasm resource in our group are summarized. Due to the partial elimination of the chromosomes from pollen parents, the hybrids are able to maintain the whole or majority of the chromosomes from the female brassicas with the addition of few alien ones, and could produce the introgression lines with some male-derived characters, exhibiting the genetic and epigenetic alterations but with the same chromosome number as the female. The perspectives for crosses with distant relatives aiming at the new germplasm innovation are discussed.

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李再云.芸薹属作物的渗入杂交与种质资源创新[J].植物遗传资源学报,2020,21(1):20-25.

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  • 收稿日期:2019-10-24
  • 最后修改日期:2019-11-15
  • 录用日期:2019-11-01
  • 在线发布日期: 2020-01-17
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