期刊文献+

海湾扇贝养殖群体遗传多样性的研究 被引量:16

The genetic diversity of reared populations of bay scallop Argopecten irradians (Lamarck)
下载PDF
导出
摘要 用等位基因酶的聚丙烯酰胺凝胶电泳技术,研究了大连沿岸不同生态环境条件下的大李家湾低排筏、大李家湾高排筏、凌水桥、棋盘磨4个海湾扇贝养殖群体的遗传多样性.在4个群体的7种等位基因酶和闭壳肌蛋白中均检测到了22个基因位点,各群体的多态位点比例分别为22.73%,22.73%,22.73%,18.18%(P≤0.95)和27.27%,27.27%,31.82%,36.36%(P≤0.99);杂合度观测值分别为0.064,0.071,0.075,0.069;Hardy-Weinberg平衡偏离指数分别为-0.068,-0.020,-0.032,-0.050;近交系数分别为0.568,0.565,0.487,0.550;位点等位基因有效数分别为1.102,1.109,1.143,1.122;遗传变异综合评价指数分别为0.0060,0.0071,0.0088,0.0073.海湾扇贝养殖群体遗传多样性总体水平较低,但在这4个群体中,凌水桥群体的遗传多样性水平最高,大李家湾高排筏和棋盘磨群体的遗传多样性水平较高,大李家湾低排筏群体遗传多样性水平最低. The genetic diversity of four reared populations (Dalijiadipai DLJD, Dalijiagaopai DLJG, Lingshuiqiao LSQ, Qipanmo QPM)of bay scallop Argopecten irradians (Lamarck) at the coastal shellfish farms in Dalian hadbeen investigated based on polyacrylamide gel electrophoresis for allozyme. 22 loci in 7 enzymes and general protein were detected. Based on the 22 common loci of samples in four populations, the proportion of polymorphic loci was 22.73%, 22.73%, 22.73% and 18.18% respectively under the criterion P***0.95 and 27.27%, 27.27%, 31.82% and 36.36% respectively under the criterion P≤0.99; the mean heterozygosity observed was 0.064, 0.071, 0.075 and 0.069 respectively; the deviation index from Hardy-Weinberg equilibrium was - 0.068, -0.020, - 0.032 and - 0.050 respectively; inbreeding coefficient was 0.568, 0.565, 0.487 and 0.550 respectively; the mean effective number of allele in a locus was 1.102, 1.109, 1.143 and 1.122 respectively; the comprehensive index of genetic variation was 0.006 0, 0.007 1 , 0.008 8 and 0.007 3 respectively. The genetic diversity of the bay scallop was lower than the average of bivalve. The genetic diversity in LSQ was the highest, in DLJG and QPM was higher, in DLJD was the lowest among the four populations.
出处 《海洋学报》 CAS CSCD 北大核心 2002年第2期107-113,共7页
基金 国家自然科学基金资助项目(39600027).
关键词 海湾扇贝 等位基因酶 遗传多样性 生态环境 养殖 Argopecten irradians allele genetic diversity
  • 相关文献

参考文献5

  • 1萨姆布鲁克J 金冬雁等(译).分子克隆实验指南[M].北京:北京科学出版社,1993.672-692.
  • 2权洁霞,戴继勋,尚迅.海洋生物遗传多样性研究现状[J].青岛海洋大学学报(自然科学版),1999,29(2):283-288. 被引量:16
  • 3张福绥,何义朝,亓铃欣,孙鲁宁.海湾扇贝引种复状研究[J].海洋与湖沼,1997,28(2):146-152. 被引量:40
  • 4李景均.群体遗传学[M].北京:农业出版社,1955..
  • 5张福绥 何义朝 等.海湾扇贝引种、育苗及试样[J].海洋与湖沼,1986,17(5):367-374.

二级参考文献8

共引文献71

同被引文献219

引证文献16

二级引证文献128

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部