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Position: Home > Articles > The Study on Karyotype of Allium wallichii in Jizu Mountain,Yunnan province Journal of Shandong Forestry Science and Technology 2008,38 (3) 1-3

云南鸡足山地区多星韭核型研究

作  者:
赵莉丽;王锦
单  位:
西南林学院园林学院
关键词:
鸡足山;多星韭;染色体;核型
摘  要:
对鸡足山地区4个多星韭种群的染色体进行核型分析与比较,结果表明:多星韭1号和4号种群为二倍体,核型公式为:2n=2x=14=8sm(2SAT)+6m和2n=2x=14=10m(SAT)+4sm,多星韭2号和3号种群为四倍体,核型公式为:2n=4x=28=14m(2SAT)+14sm和2n=4x=28=18m(2SAT)+10sm。从植株形态、分布、生境、核型等方面分析表明,多星韭核型进化趋势是由二倍体向四倍体进化的,四倍体多星韭二倍化显著。
译  名:
The Study on Karyotype of Allium wallichii in Jizu Mountain,Yunnan province
作  者:
Zhao Lili,Wang Jin(Faculty of Landscape Architecture,Southwest Forestry College,Kunming Yunnan 650224,China)
关键词:
Jizu Mountain;Allium wallichii;chromosome;karyotype
摘  要:
The karyotypes of four populations of Allium wallichii in Jizu Mountain were analyzed.The results showed that populations NO.1 and NO.4 were all diploid,whose karyotype formulae were 2n=2x=14=8sm(2SAT)+6m and 2n=2x=14=10m(SAT)+4sm.Populations NO.2 and NO.3 were all tetraploid,whose karyotype formulae were 2n=4x=28=14m(2SAT)+14sm and 2n=4x=28=18m(2SAT)+10sm.From the morphology,distribution,habitats and karyotypes analysis show that the karyotype evolution trend of Allium wallichii is from diploid to tetraploid,tetraploid is conspicuously diploidizated.

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