8个大粒裸燕麦品种核型研究  

Karyotype study of 8 kinds of Avena nuda

作　　者：耿帆[1,2,3] 周青平[4] 梁国玲[2,3] 贾志锋[2,3] 刘文辉[2,3] 丁成翔[2,3] 刘勇[2,3] 颜红波[2,3] 

机构地区：[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]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 [4]西南民族大学青藏高原研究所,四川成都610041

出　　处：《草业学报》2016年第3期120-125,共6页Acta Prataculturae Sinica

基　　金：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);青藏高原牧草种质资源保护利用(070401)资助

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。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 evolution-ary trend analysis,Baiyan No.2 is a relatively new cultivar and Qingyou No.3 is the most original cultivar.

关 键 词：核型分析 裸燕麦 聚类分析 

分 类 号：S512.6[农业科学—作物学]