内蒙古葱属(A llium L.)5种常见根茎组植物的核型研究

THE STUDY OF NUCLEAR TYPE ON 5 STOLON-PLANT OF Allium L.IN INNER MONGOLIA

本文利用染色体常规制片法 ,对内蒙古境内分布的 5种葱属 (Allium L.)根茎组植物进行了染色体核型分析。结果表明 ,根茎组植物的染色体以 8为基数 ,属大型染色体 ,绝大多数为中部着丝点染色体 ,并常带随体。其中野韭 (A.ramosum L.)的核型公式为 2 n=4x=32 =30 m(2 SAT) +2 sm,细叶葱 (A.tenuissimum L.)为 2 n=4x=32 =2 8m+2 st+2 sm,黄花葱 (A.condensatum Turcz.)为 2 n=2 x=16 m,矮葱 (A.anisopodium L edeb.)为 2 n=2 x=16 m ,山葱 (A.senescens L .)为 2 n=2 x=16 m 。

It analyzed on the chromosomal nuclear type of 5 stolon-plant of Allium L.in Inner Mongolia by the Common chromosomal way.The result showed;the chromosomal basis numbers of stolon-plants were eight,and were large type.A majority of them were middle chromosome.The nuclear type formula of A.ramosum L.was 2n=4x=32=30m(2STA)+2sm,that of A. tenuissimum L.was 2n=4x=32=28m+2st+2sm,that of A.condensatum Turez.was 2n=2x=16m,that of A.anisopodium L.was 2n=2x=16m,of A.senescens L.was 2n=2x=16,majority of them were original type.