摘要
本研究报道了产于青藏高原东缘3种风毛菊属植物的染色体数目和核型。研究结果表明,3个种的染色体数目和核型如下:甘肃风毛菊为2n=2x=32=12m+16sm+4st,核型属2B型;大耳叶风毛菊为2n=2x=26=10m+14sm+2st,核型属2A型;波缘风毛菊为2n=2x=26=6m+20sm,核型属2B型;这3个种均为二倍体,并且在染色体中均未发现随体和B染色体。
Chromosome numbers and the karyotypes of 3 Saussurea species are studied in the eastern ed Qinghai-Tibeten Plateau. The chromosome numbers and the karyotypes were as follows: karyotype of S. ge ka of suensis was diploid (2n=2x=32= 12m+16sm+4st) and belongs to stebhings 2B type karyotype of S. macrota was diploid (2n=2x=26= 10m+14sm+2st) and belongs to stebbings 2A type karyotype of S. undulata was diploid (2n=2x=26=6m+20sm) and belongs to stebbings 2B type. No satellites and B chromosomes have been found in these 3 species.
出处
《草业学报》
CSCD
北大核心
2009年第2期169-174,共6页
Acta Prataculturae Sinica
基金
甘肃省科技支撑计划(0804NKCA075)
甘肃教育厅科研基地重点项目计划(08zd-14)
兰州市科技发展计划(2008-1-169)资助
关键词
风毛菊属
核型
青藏高原
Saussurea karyotype Qinghai-Tibeten Plateau