A highly conserved ontogenetic limb allometry and its evolutionary significance in the adaptive radiation of Anolis lizards
(2021) In Proceedings of the Royal Society B: Biological Sciences 288(1953).- Abstract
Diversifications often proceed along highly conserved, evolutionary trajectories. These patterns of covariation arise in ontogeny, which raises the possibility that adaptive morphologies are biased towards trait covariations that resemble growth trajectories. Here, we test this prediction in the diverse clade of Anolis lizards by investigating the covariation of embryonic growth of 13 fore- and hindlimb bones in 15 species, and compare these to the evolutionary covariation of these limb bones across 267 Anolis species. Our results demonstrate that species differences in relative limb length are established already at hatching, and are resulting from both differential growth and differential sizes of cartilaginous anlagen. Multivariate... (More)
Diversifications often proceed along highly conserved, evolutionary trajectories. These patterns of covariation arise in ontogeny, which raises the possibility that adaptive morphologies are biased towards trait covariations that resemble growth trajectories. Here, we test this prediction in the diverse clade of Anolis lizards by investigating the covariation of embryonic growth of 13 fore- and hindlimb bones in 15 species, and compare these to the evolutionary covariation of these limb bones across 267 Anolis species. Our results demonstrate that species differences in relative limb length are established already at hatching, and are resulting from both differential growth and differential sizes of cartilaginous anlagen. Multivariate analysis revealed that Antillean Anolis share a common ontogenetic allometry that is characterized by positive allometric growth of the long bones relative to metapodial and phalangeal bones. This major axis of ontogenetic allometry in limb bones deviated from the major axis of evolutionary allometry of the Antillean Anolis and the two clades of mainland Anolis lizards. These results demonstrate that the remarkable diversification of locomotor specialists in Anolis lizards are accessible through changes that are largely independent from ontogenetic growth trajectories, and therefore likely to be the result of modifications that manifest at the earliest stages of limb development.
(Less)
- author
- Feiner, Nathalie LU ; Jackson, Illiam S.C. LU ; Van Der Cruyssen, Eliane and Uller, Tobias LU
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- adaptive radiation, allometries, Anolis lizards, diversification, limb morphology, macroevolution
- in
- Proceedings of the Royal Society B: Biological Sciences
- volume
- 288
- issue
- 1953
- article number
- 20210226
- publisher
- Royal Society Publishing
- external identifiers
-
- scopus:85109057566
- pmid:34157873
- ISSN
- 0962-8452
- DOI
- 10.1098/rspb.2021.0226
- language
- English
- LU publication?
- yes
- id
- 450fac94-6ce8-4acf-a59d-2d702f8a42ef
- date added to LUP
- 2021-08-17 15:24:29
- date last changed
- 2024-06-15 14:35:09
@article{450fac94-6ce8-4acf-a59d-2d702f8a42ef,
abstract = {{<p>Diversifications often proceed along highly conserved, evolutionary trajectories. These patterns of covariation arise in ontogeny, which raises the possibility that adaptive morphologies are biased towards trait covariations that resemble growth trajectories. Here, we test this prediction in the diverse clade of Anolis lizards by investigating the covariation of embryonic growth of 13 fore- and hindlimb bones in 15 species, and compare these to the evolutionary covariation of these limb bones across 267 Anolis species. Our results demonstrate that species differences in relative limb length are established already at hatching, and are resulting from both differential growth and differential sizes of cartilaginous anlagen. Multivariate analysis revealed that Antillean Anolis share a common ontogenetic allometry that is characterized by positive allometric growth of the long bones relative to metapodial and phalangeal bones. This major axis of ontogenetic allometry in limb bones deviated from the major axis of evolutionary allometry of the Antillean Anolis and the two clades of mainland Anolis lizards. These results demonstrate that the remarkable diversification of locomotor specialists in Anolis lizards are accessible through changes that are largely independent from ontogenetic growth trajectories, and therefore likely to be the result of modifications that manifest at the earliest stages of limb development. </p>}},
author = {{Feiner, Nathalie and Jackson, Illiam S.C. and Van Der Cruyssen, Eliane and Uller, Tobias}},
issn = {{0962-8452}},
keywords = {{adaptive radiation; allometries; Anolis lizards; diversification; limb morphology; macroevolution}},
language = {{eng}},
number = {{1953}},
publisher = {{Royal Society Publishing}},
series = {{Proceedings of the Royal Society B: Biological Sciences}},
title = {{A highly conserved ontogenetic limb allometry and its evolutionary significance in the adaptive radiation of Anolis lizards}},
url = {{http://dx.doi.org/10.1098/rspb.2021.0226}},
doi = {{10.1098/rspb.2021.0226}},
volume = {{288}},
year = {{2021}},
}