摘要
对菊属(Dendranthema)在中国分布的10种20个居群的材料进行了细胞学研究,首次报道了异色菊(2n=18,36)、银背菊(2n=56)、楔叶菊(2n=18,72)的染色体数目和核型,以及蒙菊(2n=18)的染色体数目新纪录,并结合前人的工作,分析了菊属的核型特征和演化趋势,及其与该属分类群的关系。
Ten species of the genus Dendranthema are cytologically studied. The karyotypes and chromosome numbers of D. dichrum (2n=2x=18=14m + 4sm and 2n= 4x=36=28m+6sm +2st ), D. argrophyllum (2n=6x=54 = 38m + 14sm + 2st ), D. naktongense (2n=2x=18=10m + 8sm and 2n=8x=72= 50m + 14sm + 8st ) and new chromosome number record of D. mongolicum 〔2n=2x=18=12m + 2sm + 4st (2SAT ) 〕 are reported for the first time. Previous works have been taken into account,and the karyotypic characters and evolutional trend of Dendranthema are discussed.
出处
《武汉植物学研究》
CSCD
1997年第4期289-292,共4页
Journal of Wuhan Botanical Research
基金
国家自然科学基金
关键词
菊科
菊属
染色体数目
细胞学
Dendranthema, Chromosome number, Karyotype