Age specificity of inbreeding depression during a life cycle ofCallosobruchus chinensis (Coleoptera: Bruchidae)
Age specificity of inbreeding depression during a life cycle ofCallosobruchus chinensis (Coleoptera: Bruchidae)
复制标题
中华蝼蛄（鞘翅目：蝼蛄科）生命周期中近交衰退的年龄特异性
DOI：
10.1007/bf02512567
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Yoshinari Tanaka
中科院分区：
文献类型：
--
作者：
Yoshinari Tanaka
通过比较红小豆豆象近交系及其杂交后代的繁殖力，研究了近交对红小豆豆象繁殖力的影响。四个连续的全同胞交配减少只有10.3%的总繁殖力，并没有减少早期的繁殖力，直到第三天开始繁殖。这表明，在成虫寿命的早期，当生殖价值较高时，隐性有害基因已被消除。随着年龄的增长，近交衰退有轻微的增加趋势，但统计上不显着。
Age-specific effects of inbreeding on fecundity were assayed for adzuki bean weevilCallosobruchus chinensisby comparing inbred lines and their cross. Four consecutive full-sib matings reduced only 10.3 percent in total fecundity, and did not decrease early fecundity at all until third day from the onset of reproduction. It is suggested that recessive detrimental genes have been eliminated from the early period of adult life span when reproductive value is high. There was a slight tendency that inbreeding depression increased as age proceeded though not statistically significant.