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史军伟, 徐玲玲, 方亮, 李同建, 赵中伟, 廖亮. 毛茛属五种植物的核型[J]. 植物科学学报, 2009, 27(3): 336-339.
引用本文: 史军伟, 徐玲玲, 方亮, 李同建, 赵中伟, 廖亮. 毛茛属五种植物的核型[J]. 植物科学学报, 2009, 27(3): 336-339.
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SHI Jun-Wei, XU Ling-Ling, FANG Liang, LI Tong-Jian, ZHAO Zhong-Wei, LIAO Liang. Karyotypes of Five Species in Ranunculus[J]. Plant Science Journal, 2009, 27(3): 336-339.
Citation: SHI Jun-Wei, XU Ling-Ling, FANG Liang, LI Tong-Jian, ZHAO Zhong-Wei, LIAO Liang. Karyotypes of Five Species in Ranunculus[J]. Plant Science Journal, 2009, 27(3): 336-339.
shu

毛茛属五种植物的核型

Karyotypes of Five Species in Ranunculus

    摘要
  • 摘要: 对中国云南毛茛属(Ranunculus)5种植物核型进行研究,结果表明,毛茛组茴茴蒜(Ranunculus chinensis Bunge)和禺毛茛(R.cantoniensis DC.)核型公式为2n=2x=16=6m+4sm+6st和2n=4x=32=14m+6sm+12st;该组茴茴蒜、禺毛茛和扬子毛茛(R.sieboldiiMiq.)的不同居群核型存在自西向东不对称系数渐增大现象.在美丽毛茛组中,深齿毛茛(R.pulchellus var.stracheyanus Hand.-Mazz.)的中甸居群核型(2n=4x=32=12m+12sm+8st)与青海居群核型(2n=4x=32=24m+8sm)明显不同;毛果高原毛茛(R.tangusticusvar.dasycarpus(Maxim.)L.Liou)染色体数目(2n=40),核型公式(2n=5x=40=30m+10sm)和纳帕海毛茛(R.napahaiensis W.T.Wang & L.Liao)染色体数目(2n=40),核型公式(2n=5x=40=20m+16sm+4st)为首次报道.

     

    Abstract: The karyotypes of five species of genus Ranunculus in Yunnan province of China were analysed.In Sect.Ranunculus,the karyotype formulas of Ranunculus chinensis Bunge and R.cantoniensis DC.were 2n=2x=16=6m+4sm+6st and 2n=4x=32=14m+6sm+12st.The asymmetrical karyotype coefficient of R.chinensis,R.cantoniensis and R.sieboldii Miq.,gradually increased in different population from west to east in China.In Sect.Auricomus,the karyotypes(2n=4x=32=12m+12sm+8st) of R.pulchellus var.stracheyanus Hand.-Mazz.in Zhongdian population was obviously different from that in Qinghai population(2n=4x=32=24m+8sm).The chromosome numbers and karyotypes(2n=40,2n=5x=40=30m+10sm)of R.tangusticus var.dasycarpus(Maxim.)L.Liou and that(2n=40,2n=5x=40=20m+16sm+4st) of R.napahaiensis W.T.Wang & L.Liao are reported for the first time.

     

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