安徽农业科学Issue(18)：9644-9645,9650,3.
药用植物灵菊七的染色体核型研究
Study on Chromosomal Karyotypes of Medicinal Plant Gynura medica
摘要
Abstract
[Objective] To study the chromosomal characteristics and karyotypes of G. medica[Method] Stem tip of G. medica seedlings were collected every 20 rain from 6:30 to 10:30 am, and all materials were treated and squashed for investigating chromcsouud number and karyotypcs analysis. [Result] In tote/102 stem tip cells in metaphase, 96.08% of cells are with 20 chromosomes, and 3.92% of cells are with 40 chromosomes. The optimal time for sampling was from 7:50 to 9:30 am. [Conclusion] G. medica is the diploid plant with 20 chromo-somcs. Karyotype analysis gets formula 2n = 2x = 20 re,and all 10 pairs of chromosomes belong to type IA. The article reported the chromo- somes characteristics of G. medica for the first time in China.关键词
灵菊七/染色体/核型Key words
Gynura medica/Chromosome/Karyotype分类
农业科技引用本文复制引用
范三微,董丽辉,凌庆枝,屠晓玮,林芝,高莉莉,魏兆军..药用植物灵菊七的染色体核型研究[J].安徽农业科学,2012,(18):9644-9645,9650,3.基金项目
浙江省中医药科技计划项目(2011ZB132) （2011ZB132）
浙江省大学生科技创新计划项目(ZJRCKJCX201007). （ZJRCKJCX201007）
