Genetic variation of morphological scaling in Drosophila melanogaster
Genetic variation of morphological scaling in Drosophila melanogaster
复制标题
果蝇形态尺度的遗传变异
DOI:
10.1038/s41437-023-00603-y
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发表时间:
2023
期刊:
影响因子:
3.8
通讯作者:
Shingleton, Alexander W.
中科院分区:
文献类型:
--
作者:
Wilcox, Austin S.;Vea, Isabelle M.;Frankino, W. Anthony;Shingleton, Alexander W.
Morphological scaling relationships between the sizes of individual traits and the body captures the characteristic shape of a species, and their evolution is the primary mechanism of morphological diversification. However, we have almost no knowledge of the genetic variation of scaling, which is critical if we are to understand how scaling evolves. Here we explore the genetics of population scaling relationships (scaling relationships fit to multiple genetically-distinct individuals in a population) by describing the distribution of individual scaling relationships (genotype-specific scaling relationships that are unseen or cryptic). These individual scaling relationships harbor the genetic variation in the developmental mechanisms that regulate trait growth relative to body growth, and theoretical studies suggest that their distribution dictates how the population scaling relationship will respond to selection. Using variation in nutrition to generate size variation within 197 isogenic lineages ofDrosophila melanogaster, we reveal extensive variation in the slopes of the wing-body and leg-body individual scaling relationships among genotypes. This variation reflects variation in the nutritionally-induced size plasticity of the wing, leg, and body. Surprisingly, we find that variation in the slope of individual scaling relationships primarily results from variation in nutritionally-induced plasticity of body size, not leg or wing size. These data allow us to predict how different selection regimes affect scaling inDrosophila, and is the first step in identifying the genetic targets of such selection. More generally, our approach provides a framework for understanding the genetic variation of scaling, an important prerequisite to explaining how selection changes scaling and morphology.
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DOI:
--
发表时间:
1991
期刊:
Evolution; international journal of organic evolution
影响因子:
--
作者:
E. Hillesheim;S. Stearns
通讯作者:
S. Stearns
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
石塚拓巳;服部光治;Hiroshi Nishina
通讯作者:
Hiroshi Nishina
DOI:
10.1101/216960
发表时间:
2017
期刊:
bioRxiv
影响因子:
--
作者:
A. Shingleton
通讯作者:
A. Shingleton
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
R. Bayley;R. Cameron
通讯作者:
R. Cameron
DOI:
10.1002/wdev.391
发表时间:
2020-06
期刊:
Wiley Interdisciplinary Reviews: Developmental Biology
影响因子:
--
作者:
I. Vea;A. Shingleton
通讯作者:
I. Vea;A. Shingleton