Developmental bias, macroevolution, and the fossil record
Developmental bias, macroevolution, and the fossil record
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DOI：
10.1111/ede.12313
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发表时间：
2020-01-01
影响因子：
2.9
通讯作者：
Jablonski, David
中科院分区：
文献类型：
--
作者：
Jablonski, David
要更全面地理解发育偏差在形成大规模进化模式中的作用，需要将偏差(祖先表型可获得的变异概率分布)与分支动力学(物种和进化谱系的差异生存和生产)结合起来。这种综合可以作为新生物学家可用的发展数据和古生物学家可用的严格表型但丰富的历史和动态数据之间的双向交换。从现存种群开始的分析可能旨在根据观察到的发育偏差预测化石记录中的宏观进化，而从化石记录开始的分析，特别是现存物种和谱系的记录，可能旨在根据宏观进化模式(包括广泛的已灭绝表型)预测发育偏差。多变量形态空间的分析在与系统发育、理论和发展模型以及多样性-差异图相结合时特别有效。这项研究计划还需要评估祖先在系统发育过程中的偏见的“遗传性”，以及随着进化时间的推移，偏见在强度和取向上的变化趋势。这样的分析将有助于找到一套关于发育偏差的宏观进化效应的一般规则，包括它对控制形态空间中分支的移动、扩张和收缩的其他内在和外在因素的影响和相互作用。
A fuller understanding of the role of developmental bias in shaping large-scale evolutionary patterns requires integrating bias (the probability distribution of variation accessible to an ancestral phenotype) with clade dynamics (the differential survival and production of species and evolutionary lineages). This synthesis could proceed as a two-way exchange between the developmental data available to neontologists and the strictly phenotypic but richly historical and dynamic data available to paleontologists. Analyses starting in extant populations could aim to predict macroevolution in the fossil record from observed developmental bias, while analyses starting in the fossil record, particularly the record of extant species and lineages, could aim to predict developmental bias from macroevolutionary patterns, including the broad range of extinct phenotypes. Analyses in multivariate morphospaces are especially effective when coupled with phylogeny, theoretical and developmental models, and diversity-disparity plots. This research program will also require assessing the "heritability" of an ancestral bias across phylogeny, and the tendency for bias change in strength and orientation over evolutionary time. Such analyses will help find a set of general rules for the macroevolutionary effects of developmental bias, including its impact on and interactions with the other intrinsic and extrinsic factors governing the movement, expansion, and contraction of clades in morphospace.