Maternal care and altered social phenotype in a recently collected stock of Astatotilapia burtoni cichlid fish.

Maternal care and altered social phenotype in a recently collected stock of Astatotilapia burtoni cichlid fish.
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最近收集的丽鱼种群中的产妇护理和社会表型的改变。

DOI:
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发表时间:
2009
影响因子:
2.6
通讯作者:
A. W. Tanner
A. W. Tanner
中科院分区:
生物学2区
文献类型:
--
作者:
S. Renn;Julia B. Carleton;H. Magee;M. L. Nguyen;A. W. Tanner

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30多年来,非洲慈鲷鱼,Astatotilapia burtoni,一直是研究社会介导的行为变化的机制的重要模型系统,重点是男性的优势行为。最近收集的野生股票(WS)的这一物种引起了兴趣,在平行研究的女性的行为。在这里,我们描述了一个强大的“好妈妈”的表型,增加了鱼苗的母性联系,以及这种新股票所表现出的雄性行为的微妙差异。虽然女性的实验室股票(LS)和WS育雏的发展鱼苗在他们的口腔,只有WS继续提供产妇护理后,最初释放的鱼苗,而LS从事子相食。我们发现,在饥饿期间,无论是在育雏或限制食物的重量损失,是更大的LS比WS,因此,观察到的行为差异可能与代谢差异。WS还表现出强大的雄激素反应,在孕产妇护理阶段的挑战。鉴于这一物种的基因组工具越来越强大,这两个股票的比较将提供调查行为差异的遗传和基因组基础的机会。
For over 30 years, the African cichlid fish, Astatotilapia burtoni, has been an important model system for studying the mechanisms underlying socially mediated behavioral change, with the focus being the dominance behavior of males. A recently collected wild-stock (WS) of this species invigorates interest in parallel studies of females' behavior. Here, we describe a robust 'good-mother' phenotype, increased maternal affiliation in fry, and subtle differences in males' behavior that are exhibited by this new stock. While the females of both the laboratory-stock (LS) and the WS brood the developing fry in their buccal cavity, only the WS continues to provide maternal care after initial release of the fry while the LS engage in filial cannibalism. We show that weight loss during starvation, either during brooding or with restriction of food, is greater in the LS than in the WS; thus, the observed behavioral differences may be tied to metabolic differences. The WS also exhibits a robust androgen response to challenge during the maternal care phase. Given the increasing power of genomic tools available for this species, the comparison of these two stocks will offer the opportunity to investigate the genetic and genomic basis of behavioral differences.
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