Karyotype Analysis of Avena sativa L. ‘Qingyan No.1’

doi:10.11733/j.issn.1007-0435.2016.02.022

Acta Agrestia Sinica ›› 2016, Vol. 24 ›› Issue (2): 389-392.DOI: 10.11733/j.issn.1007-0435.2016.02.022

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Karyotype Analysis of Avena sativa L. ‘Qingyan No.1’

LIANG Guo-ling^1,2, ZHOU Qing-ping³, GENG Fan^1,2, TIAN Li-hua³, YAN Hong-bo², CHEN You-jun³, CHEN Shi-yong³

1. Qinghai University, Xining, Qinghai Province 810016, China;
2. Academy of Animal Sciences and Veterinary, Xining, Qinghai Province 810016, China;
3. Southwest University for Nationalities, Chengdu, Sichuan Province 610041, China

Received:2015-01-14 Revised:2015-12-14 Online:2016-04-15 Published:2016-06-06

青燕1号燕麦新品种的核型分析

梁国玲^1,2, 周青平³, 耿帆^1,2, 田莉华³, 颜红波², 陈有军³, 陈仕勇³

1. 青海大学, 青海西宁 810016;
2. 青海省畜牧兽医科学院, 青海西宁 810016;
3. 西南民族大学, 四川成都 610041

通讯作者: 周青平
作者简介:梁国玲(1978-),女,河南淅川人,博士研究生,副研究员,主要从事牧草栽培育种方面研究,E-mail:qhliangguoling@163.com
基金资助:
"青海省青藏高原优良牧草种质资源利用重点实验室"(2014-Z-Y12,2015-Z-Y15);农业部"青藏高原牧草种质资源保护利用"(070401);四川省教育厅创新团队项目(14TD0049);青海省"青藏高原特有草种资源开发及应用国家地方联合工程实验室";青海省"人才小高地";现代农业产业技术体系(CARS-35-41)资助

Abstract

Abstract:

In order to understand chromosome number and karyotype characteristics of a new oat (A.sativa L) variety, ‘Qingyan NO.1’, and provide cytological evidence for taxonomy of this new variety, its karyotype was examined in this study, using chromosome tabletting method. The results showed that the chromosomes number of the variety was 2n=6x=42, the karyotype formula was 2n=6x=20m+22sm (4SAT). Two satellite chromosomes were found on No.7 and No.17 chromosomes. Length ratio of chromosomes was 2.31 and the percentage of arm ratio more than 2:1was 42.86%. Index of karyotypic asymmetry was 63.25%. The chromosome karyotype of ‘Qingyan No.1’ is defined as 2B type.

Key words: ‘Qingyan NO.1&rsquo, oat, Chromosome, Karyotype

摘要：

试验采用染色体压片法对‘青燕1号’燕麦(Avena sativa L. ‘Qingyan NO.1’)新品种的核型进行研究,明确其染色体数目及核型特征,为该品种的分类提供细胞学研究基础。结果表明:‘青燕1号’燕麦体细胞染色体数目为2n=6x=42,核型公式2n=6x=20m+22sm(4SAT),其7号和17号染色体分别含有2个随体,染色体长度比为2.31,臂比大于2:1的染色体百分比为42.86%,核型不对称系数为63.25%,核型属"2B型"。

关键词: ‘青燕1号’燕麦, 染色体, 核型分析

CLC Number:

S543.7

LIANG Guo-ling, ZHOU Qing-ping, GENG Fan, TIAN Li-hua, YAN Hong-bo, CHEN You-jun, CHEN Shi-yong. Karyotype Analysis of Avena sativa L. ‘Qingyan No.1’[J]. Acta Agrestia Sinica, 2016, 24(2): 389-392.

梁国玲, 周青平, 耿帆, 田莉华, 颜红波, 陈有军, 陈仕勇. 青燕1号燕麦新品种的核型分析[J]. 草地学报, 2016, 24(2): 389-392.

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Karyotype Analysis of Avena sativa L. ‘Qingyan No.1’

青燕1号燕麦新品种的核型分析

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