GENETIC DETERMINATION OF INSEMINATION FREQUENCY AND SPERM PRECEDENCE IN THE GERMAN-COCKROACH

被引:54
作者
COCHRAN, DG
机构
[1] Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia
关键词
D O I
10.1111/j.1570-7458.1979.tb02927.x
中图分类号
Q96 [昆虫学];
学科分类号
摘要
By use of a recessive‐genetic marker, it has been shown that adult female German cockroaches, Blattella germanica (L.), can be successfully inseminated by more than one male. Reinsemination was demonstrated to occur rarely between the first mating and production of the first egg case, while about 20% of the females examined remated between egg cases. The total impact of second matings on the offspring produced was small because of remating infrequency and the prevalence of incomplete sperm precedence in those that were reinseminated. DETERMINATION GENETIQUE DE LA FREQUENCE DES INSEMINATIONS ET DE LA COMPETITION ENTRE SPERMATOZOIDES CHEZ BLATTELLA GERMANICA Le marquage par un gène récessif a permis de montrer que les femelles de Blattella germanica peuvent être inséminées avec succès par plus d'un mâle. La seconde insémination a rarement lieu entre la première copulation et la production de la première oothèque, tandis que 20% des femelles examinées recopulent entre la production des différentes oothèques. L'impact global des secondes copulations sur la descendance est faible parce que, d'une part, la fréquence des nouvelles copulations est limitée. et que, d'autre part, les spermatozoïdes de la première copulation incomplète des femelles réinséminées sont avantagés. 1979 The Netherlands Entomological Society
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页码:259 / 266
页数:8
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