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通过基因组原位杂交（GISH）、多色基因组原位杂交（multicolor GISH）和荧光原位杂交（FISH）揭示的五个小麦-部分双二倍体的染色体组成

Chromosomal constitutions of five wheat - partial amphiploids as revealed by GISH, multicolor GISH and FISH.

作者信息

He Fang, Wang Yuhai, Bao Yinguang, Ma Yingxue, Wang Xin, Li Xingfeng, Wang Honggang

机构信息

State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Taian 271018, People's Republic of China.

Zaozhuang University, Zaozhuang 277160, People's Republic of China.

出版信息

Comp Cytogenet. 2017 Aug 3;11(3):525-540. doi: 10.3897/CompCytogen.v11i3.11883. eCollection 2017.

DOI:10.3897/CompCytogen.v11i3.11883
PMID:29093801
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5646653/
Abstract

A combination of meiotic pairing analysis and hybridization (genomic hybridization [GISH], multicolor GISH [mcGISH] and fluorescence hybridization [FISH]) of five (Linnaeus, 1753) - (Podpěra, 1902) (2n = 10x = 70) amphiploids was employed to investigate the genomic constitution and relationships between wheat and alien chromosomes. GISH, multicolor GISH and FISH patterns of mitotic chromosomes indicate that the genomic constitution of the five partial amphiploids (XY693, XY7430, SN19, SN20 and SN122) are 14A + 12B + 14D + 8Js + 8J, 12A + 16B + 14D + 2St + 8Js + 2J + 2 W-E, 14A + 14B + 14D + 4St + 8Js, 14A + 14B + 14D + 2St + 10Js + 2J, and 14A + 14B + 14D + 2St + 8Js + 4J, respectively. Analysis of meiotic chromosome pairing in the F hybrids between these five partial amphiploids suggests that SN20 and SN122 are the most closely related amphiploids and are somewhat related with XY693 and XY7430. However, the alien chromosome constitutions of SN19 differed from the other four amphiploids. In addition, a new pairing between wheat and chromosomes was distinguished in some cells of the hybrids SN19 × XY7430, SN20 × XY7430 and SN122 × XY7430.

摘要

采用减数分裂配对分析与杂交（基因组原位杂交[GISH]、多色GISH[mcGISH]和荧光原位杂交[FISH]）相结合的方法，对5个普通小麦-茹科夫斯基小麦（Triticum aestivum - Triticum zhukovskyi）（2n = 10x = 70）双二倍体进行研究，以探究其基因组组成以及小麦与外源染色体之间的关系。有丝分裂染色体的GISH、多色GISH和FISH模式表明，5个部分双二倍体（XY693、XY7430、SN19、SN20和SN122）的基因组组成分别为14A + 12B + 14D + 8Js + 8J、12A + 16B + 14D + 2St + 8Js + 2J + 2W - E、14A + 14B + 14D + 4St + 8Js、14A + 14B + 14D + 2St + 10Js + 2J和14A + 14B + 14D + 2St + 8Js + 4J。对这5个部分双二倍体之间的F杂种减数分裂染色体配对分析表明，SN20和SN122是关系最为密切的双二倍体，与XY693和XY7430也有一定关系。然而，SN19的外源染色体组成与其他4个双二倍体不同。此外，在杂种SN19×XY7430、SN20×XY7430和SN122×XY7430的一些细胞中，还发现了小麦与茹科夫斯基小麦染色体之间的新配对。

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J Genet Genomics. 2014 Nov 20;41(11):591-9. doi: 10.1016/j.jgg.2014.06.003. Epub 2014 Jun 14.
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Molecular cytogenetic identification of three rust-resistant wheat- partial amphiploids.三个抗锈小麦部分双二倍体的分子细胞遗传学鉴定
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长穗偃麦草和小麦基因组中逐渐和突然施加盐胁迫的耐受性的染色体控制。
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Molecular cytogenetic characterization of wheat--Thinopyrum elongatum addition, substitution and translocation lines with a novel source of resistance to wheat Fusarium Head Blight.小麦——长穗偃麦草附加、代换和易位系的分子细胞遗传学鉴定，其具有一个小麦赤霉病新的抗性来源。
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