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草业学报 ›› 2016, Vol. 25 ›› Issue (3): 120-125.DOI: 10.11686/cyxb2015101

• 研究论文 • 上一篇    下一篇

8个大粒裸燕麦品种核型研究

耿帆1, 2, 4, 周青平3, *, 梁国玲2, 4, 贾志锋2, 4, 刘文辉2, 4, 丁成翔2, 4, 刘勇2, 4, 颜红波2, 4   

  1. 1.青海大学农牧学院,青海 西宁 810016;
    2.青海省畜牧兽医科学院,青海 西宁 810016;
    3.西南民族大学青藏高原研究所,四川 成都 610041;
    4.青藏高原优良牧草种质资源研究利用省级重点实验室,青海 西宁 810016
  • 收稿日期:2015-02-25 出版日期:2016-03-20 发布日期:2016-03-20
  • 通讯作者: E-mail:qpingzh@aliyun.com
  • 作者简介:耿帆(1988-),女,陕西泾阳人,在读硕士.E-mail:892492927@qq.com
  • 基金资助:
    国家科技部农转资金项目"莜麦新品种青引3号试验与示范(2013GB2G200503)",青海省农牧科技领域人才"小高地",国家科技部科技支撑项目"青海地区优质牧草选育及生产利用技术集成与示范(2011BAD17B05-5)","现代农业产业技术体系建设专项资金资助"(CARS-35-41)和青藏高原牧草种质资源保护利用(070401)资助

Karyotype study of 8 kinds of Avena nuda

GENG Fan1, 2, 4, ZHOU Qing-Ping3, *, LIANG Guo-Ling2, 4, JIA Zhi-Feng2, 4, LIU Wen-Hui2, 4, DING Cheng-Xiang2, 4, LIU Yong2, 4, YAN Hong-Bo2, 4   

  1. 1.College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China;
    2.Academy of Animal Science and Veterinary Medicine of Qinghai Province, Xining 810016, China;
    3.College of Qing-Tibetan Plateau of Southwest University for Nationalities, Chengdu 610041, China;
    4.Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan, Xining 810016, China
  • Received:2015-02-25 Online:2016-03-20 Published:2016-03-20

摘要: 采用常规压片法对来源于我国不同省份的8个大粒裸燕麦品种进行了核型分析及进化趋势研究,旨在为燕麦种质资源的收集,鉴定,开发利用和良种培育提供细胞学依据.研究结果表明,8份大粒裸燕麦材料的核型公式分别为:青莜3号:2n=6x=42=22m+20sm (4SAT);平安莜麦:2n=6x=42=18m+24sm (4SAT);白燕2号:2n=6x=42=18m+24sm (2SAT);花早2号:2n=6x=42=20m+22sm (2SAT);花晚6号:2n=6x=42=14m+28sm (6SAT);晋燕8号:2n=6x=42=22m+20sm (4SAT);宁莜1号:2n=6x=42=16m+26sm (2SAT);定莜6号:2n=6x=42=16m+26sm (4SAT),8个燕麦品种的核型均属于2B型.进行聚类及进化趋势分析发现,白燕2号为最进化的品种,青莜3号为最原始的品种.

Abstract: In order to provide cytological information for the collection, identification, utilization and breeding of Avena nuda germplasm, karyotype analysis and an evolution trend investigation have been undertaken of 8 A. nuda cultivars from different provinces of China using the conventional tableting method. The karyotype formulas of the 8 cultivars as follows: Qingyou No. 3: 2n=6x=42=22m+20sm (4SAT); Pingan: 2n=6x=42=18m+24sm (4SAT); Baiyan No. 2: 2n=6x=42=18m+24sm (2SAT); Huazao No. 2: 2n=6x=42=20m+22sm (2SAT); Huawan No. 6: 2n=6x=42=14m+28sm (6SAT); Jinyan No. 8: 2n=6x=42=22m+20sm (4SAT); Ningyou No. 1: 2n=6x=42=16m+26sm (2SAT); Dingyou No. 6: 2n=6x=42=16m+26sm (4SAT). The karyotype of the 8 cultivars belongs to the 2B type. According to clustering and evolutionary trend analysis, Baiyan No. 2 is a relatively new cultivar and Qingyou No. 3 is the most original cultivar.