Phylogenetic constraint on male parental care in the dabbling ducks
Phylogenetic constraint on male parental care in the dabbling ducks
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DOI：
10.1098/rspb.1999.0702
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发表时间：
1999-04-22
影响因子：
4.7
通讯作者：
Sorenson, MD
中科院分区：
文献类型：
--
作者：
Johnson, KP;McKinney, F;Sorenson, MD
系统发育约束和惯性，即以前的适应对未来进化轨迹的限制，经常被用来解释在适应背景下无法解释的行为，形态和生理特征。我们重建的历史变化，在男性父母的照顾行为的dabbling鸭（家庭：鸭科;部落：Anatini）使用基于线粒体DNA序列的基因。雄性父母照顾在许多热带和南半球的鸭子，但缺乏所有北方物种。然而，南半球的物种是最近从北方祖先衍生出来的，是这种一般模式的例外。在这些物种中缺乏男性父母照顾可以归因于系统发育的限制。
Phylogenetic constraint and inertia, i.e. limitations on future evolutionary trajectories imposed by previous adaptation, are often invoked to explain behavioural, morphological and physiological traits that defy explanation in an adaptive context. We reconstructed historical changes in male parental care behaviour in the dabbling ducks (family: Anatidae; tribe: Anatini) using a phylogeny based on mitochondrial DNA sequences. Male parental care is observed in many tropical and Southern hemisphere dabbling ducks but is lacking in all Northern hemisphere species. Southern hemisphere species that are very recently derived from Northern hemisphere ancestors, however, are exceptions to this general pattern. Lack of male parental care in these species can be attributed to phylogenetic constraint.