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Acta Prataculturae Sinica ›› 2012, Vol. 21 ›› Issue (2): 171-179.

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Karyotype comparison of poppy (Papaver somniferum) isoform collected from different areas in China

WEI Yu-jie1,2, HE Qing-xiang2, ZHANG Jin-wen1,3, ZHANG Mei-xiu2   

  1. 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
  • Received:2011-08-01 Online:2012-02-25 Published:2012-04-20

Abstract: 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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