高级检索+
何敬胜, 黄宏文. 巴东木莲等位酶的遗传多样性[J]. 植物科学学报, 2003, 21(6): 544-546.
引用本文: 何敬胜, 黄宏文. 巴东木莲等位酶的遗传多样性[J]. 植物科学学报, 2003, 21(6): 544-546.
HE Jing-Sheng, HUANG Hong-Wen. The Allozyme Diversity in Manglietia patungensis Hu[J]. Plant Science Journal, 2003, 21(6): 544-546.
Citation: HE Jing-Sheng, HUANG Hong-Wen. The Allozyme Diversity in Manglietia patungensis Hu[J]. Plant Science Journal, 2003, 21(6): 544-546.

巴东木莲等位酶的遗传多样性

The Allozyme Diversity in Manglietia patungensis Hu

  • 摘要: 采用超薄平板聚丙烯酰胺等电聚焦技术对中国特有濒危植物巴东木莲(Manglietiapatungensis Hu)的遗传多样性进行了初步的分析。通过对8个酶系统18个酶位点的检测,结果表明,巴东木莲具有较高的遗传多样性。种水平多态位点的百分数(Ps)为66.7,平均预期杂合度(He)为0.178。高于多年生木本植物的平均水平。居群间分化系数为0.107,说明巴东木莲的遗传变异的89.3%来自于居群内。

     

    Abstract: The allozymic loci genetic diversity in Manglietia patungensis Hu, a threatened and endemic species, was examined employing isoelectric focusing in thin-layer polyacrylamide slab gels. Eighteen loci of eight enzymes systems were detected and used to estimate levels of genetic diversity within and among populations. The results revealed high levels of genetic diversity in M. patungensis. Twelve of the 18 loci scored were polymorphic (Ps=66.7), and the mean expected heterozygosity (He) was 0.178, which were higher than those of other long-lived woody plants. The Fst, a parameter measuring the differentiation among populations, was 0.107 suggesting 89.3% of its genetic differentiation distributed within populations.

     

/

返回文章
返回