Fertilization mode, sperm characteristics, mate choice and parental care patterns in Artedius spp. (Cottidae)
Fertilization mode, sperm characteristics, mate choice and parental care patterns in Artedius spp. (Cottidae)
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Artedius spp 的受精模式、精子特征、配偶选择和亲代照顾模式。
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
R. Hale
中科院分区：
文献类型：
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作者：
C. Petersen;C. Mazzoldi;K. Zarrella;R. Hale
本文报道了三种蒿属（Artedius（A. harringtoni、黑腹拟步行虫A. lateralis和A. fenestralis）进行了研究，包括亲本行为，配偶选择，受精模式，配子形态和行为，性腺形态，以帮助了解生殖特征与潜在的不同受精模式的协同进化。在所有这三个物种，男性守卫多个离合器在产卵地点。在实验室的择偶实验中，雄性似乎更喜欢保卫有卵的地点，并且能够更好地在这些地点吸引配偶。有证据表明，内部角码联合，虽然在A。harringtoni，存在于所有三个物种。精子行为和性腺的形态学及组织学分析表明，A. fenestralis和A.外侧肌更可能参与典型的外部受精。卵子的采用及其对雌性择偶模式的影响似乎降低了这些物种中父系确定性的重要性，并可能增加了雄性父母照顾的进化稳定性。
The reproductive biology of three species in the genus Artedius (A. harringtoni, A. lateralis and A. fenestralis) was studied, including parental behaviour, mate choice, fertilization mode, gamete morphology and behaviour, and gonad morphology to help understand the coevolution of reproductive characteristics with potentially different modes of fertilization. In all three species, males guard multiple clutches at oviposition sites. In laboratory mate-choice experiments, males appearred to prefer to defend sites containing eggs and were better able to attract mates at these sites. There was evidence that internal gomete association, although more pronounced in A. harringtoni, existed in all three species. Sperm behaviour and morphology and histological analysis of gonads suggested that A. fenestralis and A. lateralis were more likely to engage in typical external fertilization. The adoption of eggs and their effect on female mate-choice patterns appearred to reduce the importance of certainty of paternity in these species, and probably increased the evolutionary stability of male parental care.