植物学报 ›› 1997, Vol. 14 ›› Issue (03): 54-56.

• 研究报告 • 上一篇    下一篇

条叶车前和小车前的核型报道

张华宣   

  1. (绵阳师范高等专科学校 四川绵阳 621000)
  • 出版日期:1997-08-20 发布日期:1997-08-20

The Report on karyotypes of Plantago lessingii and P. minuta

Zhang Hua-xuan   

  1. (Mianyang Teachers' College, Sichuan, Mianyang 621000)
  • Online:1997-08-20 Published:1997-08-20

摘要: 本文报道了车前属两种车前的核型。Plantago lessingii为2n=12,核型属于“2A”,核型公式为K(2n)=12=10m+2sm;P. mmuta为2n=12,核型仍属“2A”型,核型公式K(2n)=12=8m+2sm+2st。染色体相对长度组成,前者2n=2L+4M2+4M1+2S1,后为2n=6M2+6M1,染色体总长分别为30.60、29.80,由12条染色体组成,还测量了这两种车前的染色体体积。

Abstract: This paper reports the Karyotypes formula of Plantago lessingii and P. minuta. K (2n)= 12= 10m+2sm, K (2n) = 8m + 2sm+2st, and Karyotype " 2A" type, composition of relative length of chromosomes: 2n = 2L + 4M2 + 4SM1+2S1,2n = 6M2 + 6M1. The total length of chromosomes is 30.6 and 29.8 respectively. Both are composed of 12 pairs of chromosomes.