Reproductive endocrinology of Syngnathidae.
Reproductive endocrinology of Syngnathidae.
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DOI：
10.1111/j.1095-8649.2011.02994.x
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发表时间：
2011-06
影响因子：
2
通讯作者：
S. Scobell;Duncan S. MacKenzie
中科院分区：
文献类型：
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作者：
S. Scobell;Duncan S. MacKenzie
很少有研究调查了合肢动物调节生殖周期、雄性怀孕和生殖行为的潜在激素机制。这些领域的进展受到该科大多数物种体积小和缺乏评估内分泌功能的有效技术的阻碍。对相对少数物种的研究表明，雄激素可能是精子发生和怀孕前雄性育儿袋发育的调节剂，而催乳素和皮质类固醇在怀孕期间协同促进育儿袋功能。没有证据支持生殖类固醇激素功能在性别角色逆转行为中的逆转，但是神经肽如精氨酸缩宫素或异肽素在调节分娩和交配行为中的作用应该被研究。合颌鱼所表现出的生殖模式的多样性表明，它们将提供一个独特的机会来评估硬骨鱼谱系中激素对表皮功能、配子体发生和生殖行为的调节是如何进化的。此外，它们的沿海分布和胚胎保留使它们成为研究内分泌干扰对适合度影响的潜在重要对象。
Few studies have examined the underlying hormonal mechanisms that mediate reproductive cyclicity, male pregnancy and reproductive behaviour in syngnathids. Progress in these areas has been hampered by the small size of most species in the family and a lack of validated techniques for assessing endocrine function. Research on a relatively small number of species has suggested that androgens are likely regulators of spermatogenesis and the development of the male brood pouch prior to pregnancy whereas prolactin and corticosteroids synergistically promote brood pouch function during pregnancy. No evidence supports a reversal of reproductive steroid hormone function in sex-role reversed behaviour, but neuropeptides such as arginine vasotocin or isotocin should be examined for their role in regulating parturition and mating behaviour. The diversity of reproductive patterns exhibited by syngnathids suggests that they will provide a unique opportunity to assess how hormonal regulation of integumentary function, gametogenesis and reproductive behaviour have evolved within a teleost lineage. Additionally, their coastal distribution and embryo retention make them potentially important subjects for studies on the effect of endocrine disruption on fitness.