INHERITANCE OF NUMBERS OF LATERAL PLATES AND GILL RAKERS IN GASTEROSTEUS-ACULEATUS
INHERITANCE OF NUMBERS OF LATERAL PLATES AND GILL RAKERS IN GASTEROSTEUS-ACULEATUS
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DOI：
10.1038/hdy.1973.40
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发表时间：
1973-01-01
期刊：
影响因子：
3.8
通讯作者：
HAGEN, DW
中科院分区：
文献类型：
--
作者：
HAGEN, DW
对于瓦帕托湖种群，Gasterosteus 侧板的遗传力在 21 C 时为 0· 50±0· 043，在 16 C 时为 0· 83±0· 033，对于其他五个群体，在 21 C 时为 0· 84±0· 039。瓦帕托湖的鳃耙在 21 C 时的估计值为 0· 58±0· 056。一般来说，后代的两种性别在遗传力上没有差异；母体效应显然不存在。有证据表明板块的不对称性有很大的遗传成分。遗传力估计为0·63±0·16。实验室饲养的家庭的性别比例差异很大，并且该领域的女性明显过多。没有发现温度或密度对性别比的影响。
Heritabilities for lateral plates in Gasterosteus are 0· 50±0· 043 at 21 C. and 0· 83±0· 033 at 16 C. for Lake Wapato stocks, and 0· 84±0· 039 at 21 C. for five other populations. The estimate for gill rakers from Lake Wapato is 0· 58±0· 056 at 21 C. In general, the two sexes of offspring do not differ in heritabilities; maternal effects apparently are not present. There is evidence that the asymmetry of plates has a large genetic component. The heritability is estimated at 0· 63±0· 16. Sex ratio varies widely among laboratory-reared families and there is a significant excess of females in the field. No effects of temperature or density on sex ratio were found.