FUNCTION AND GENETICS OF LONG VERSUS SHORT COPULATIONS IN THE CACTOPHILIC FRUIT-FLY, DROSOPHILA-MOJAVENSIS (DIPTERA, DROSOPHILIDAE)
FUNCTION AND GENETICS OF LONG VERSUS SHORT COPULATIONS IN THE CACTOPHILIC FRUIT-FLY, DROSOPHILA-MOJAVENSIS (DIPTERA, DROSOPHILIDAE)
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DOI：
10.1007/bf01054614
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发表时间：
1991-03-01
影响因子：
1
通讯作者：
KREBS, RA
中科院分区：
文献类型：
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作者：
KREBS, RA
果蝇品系交配历期的变异受两性的影响。雄性保持优势控制，因为不同品系的交配持续时间与雄性来源品系的交配持续时间更相似，但雌性来源对交配持续时间也有显著影响。菌株间的变异是由两性基因相加控制的。雄虫和雌虫的大小也影响交配持续时间。平均而言，较小的雄性交配的时间比较大的雄性长，而与较大的雌性配对的雄性交配的时间比与较小的雌性配对的长。通过与雄体大小、雌体大小、雌体交配潜伏期和雌体交配前产卵量的相关分析，验证了交配时间对适合度的重要性。较长的交配时间可能通过增加雄性交配过程中排出的附腺分泌物来促进其提早产卵。
Variation in copulation duration of Drosophila mojavensis strains was influenced by both sexes. Males maintained predominant control, as copulation duration of pairs from different strains was more similar to that of the strain from which the male was derived, but female origin also contributed significantly to the duration of copulation. Variation among strains was controlled by genes acting additively in both sexes. The size of both males and females also affected copulation duration. Small males copulated longer on average than large males, while males paired with large females copulated longer than those paired with small females. The importance of copulation duration to fitness was tested by correlation analyses with male size, female size, female remating latency, and number of eggs laid prior to female remating. Longer copulations stimulated earlier oviposition, possibly by increasing accessory gland secretions that are passed by males during copulation.