Karyotype study of 8 kinds of Avena nuda

doi:10.11686/cyxb2015101

Abstract

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.

GENG Fan, ZHOU Qing-Ping, LIANG Guo-Ling, JIA Zhi-Feng, LIU Wen-Hui, DING Cheng-Xiang, LIU Yong, YAN Hong-Bo. Karyotype study of 8 kinds of Avena nuda[J]. Acta Prataculturae Sinica, 2016, 25(3): 120-125.

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