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Developmental bias, macroevolution, and the fossil record.
Evolution and Development ( IF 2.6 ) Pub Date : 2019-09-11 , DOI: 10.1111/ede.12313
David Jablonski 1
Affiliation  

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.

中文翻译:

发展偏见,宏观进化和化石记录。

要全面了解发展偏差在塑造大规模进化模式中的作用,就需要将偏差(祖先表型可及的变异的概率分布)与进化枝动力学(物种和进化谱系的不同存活率和产量)结合起来。这种合成可以作为新生物学家可获得的发育数据与古生物学家可获得的严格表型但丰富的历史和动态数据之间的双向交换而进行。从现存种群开始的分析可能旨在根据观察到的发育偏差来预测化石记录中的宏观进化,而从化石记录开始的分析(尤其是现存物种和谱系的记录)可能旨在根据宏观进化模式来预测发育偏差,包括广泛的灭绝表型。结合系统发育,理论和发展模型以及多样性-差异图,多元形态空间分析特别有效。该研究计划还将需要评估整个系统发育过程中祖先偏倚的“遗传力”,以及强度和方向随着进化时间而发生偏倚变化的趋势。这样的分析将有助于找到发展偏见的宏观进化效应的一套通用规则,包括它对支配形态空间中进化,运动和收缩的其他内在和外在因素的影响和相互作用。该研究计划还将需要评估整个系统发育过程中祖先偏倚的“遗传力”,以及强度和方向随着进化时间而发生偏倚变化的趋势。这样的分析将有助于找到发展偏见的宏观进化效应的一套通用规则,包括它对支配形态空间中进化,运动和收缩的其他内在和外在因素的影响和相互作用。该研究计划还将需要评估整个系统发育过程中祖先偏倚的“遗传力”,以及强度和方向随着进化时间而发生偏倚变化的趋势。这样的分析将有助于找到发展偏见的宏观进化效应的一套通用规则,包括它对支配形态空间中进化,运动和收缩的其他内在和外在因素的影响和相互作用。
更新日期:2019-09-11
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