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Position: Home > Articles > Karyotype comparison of poppy(Papaver somniferum) isoform collected from different areas in China Acta Prataculturae Sinica 2012,21 (2) 171-179

中国不同地区罂粟的核型比较

作  者:
魏玉杰;何庆祥;张金文;张梅秀
单  位:
甘肃干旱生境作物学重点实验室;甘肃省农垦农业研究院
关键词:
罂粟;染色体;核型分析
摘  要:
为揭示不同地区生境条件下的罂粟生态型的染色体核型变化,利用普通压片法对来自中国5个省(市)的10份罂粟材料染色体数与核型进行了分析。结果表明,不同地区来源的罂粟材料可分为白花1号和白花2号2个生态型,染色体倍性均为二倍体,染色体数目为2n=2x=22条,染色体相对长度组成(IRL)为2L+3M2+5M1+1S;白花1号的核型公式是K(2n)=2x=22=18sm+4st,平均核型不对称系数(Ask)为72.04%,核型分类标准属于4A型;白花2号的核型公式是K(2n)=2x=22=16sm+6st,平均核型不对称系数为73.00%,核型分类标准属于4B型;不同地区的白花1号和白花2号的核型均为极不对称型,但核型发生了多样性变化。
译  名:
Karyotype comparison of poppy(Papaver somniferum) isoform collected from different areas in China
作  者:
WEI Yu-jie1,2,HE Qing-xiang2,ZHANG Jin-wen1,3,ZHANG Mei-xiu2 (1.Gansu Provincial Key Laboratory of Aridland Crop Science,Gansu Agricultural University,Lanzhou 730070,China;2.Gansu State Farms Academy of Agricultural Researches,Wuwei 733006,China;3.Agronomy College of Gansu Agricultural University,Lanzhou 730070,China)
关键词:
poppy;chromosome;karyotype
摘  要:
Through raditional quashing method,we studied the chromosome number and karyotype of 2 poppy(Papaver somniferum) isoform with 10 samples,which were collected from five provinces in China.The results showed that two subtypes Isoform No.1 and No.2 were diploid with 2n=2x=22 chromosomes.The composition of relative length chromosomes for Isoform No.1 and No.2 was 2L+3M2+5M1+1S.The karyotype formula for Isoform No.1 was 18sm+4st,and the asymmetry index was 72.04%("4A" type).The karyotype formula for Isoform No.2 was 16sm+6st,and the asymmetry index was 73.00%("4B" type).The karyotype of different sample were highly asymmetrical,but slight differences were present among them.

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