Shape, variance and integration during craniogenesis: contrasting marsupial and placental mammals

Journal of Evolutionary Biology
Anjali GoswamiMarcelo R Sánchez-Villagra

Abstract

Studies of morphological integration can provide insight into developmental patterns, even in extinct taxa known only from skeletal remains, thus making them an important tool for studies of evolutionary development. However, interpreting patterns of integration and assessing their significance for organismal evolution requires detailed understanding of the developmental interactions that shape integration and how those interactions change through ontogeny. Thus far, relatively little comparative data have been produced for this important topic, and the data that do exist are overwhelmingly from humans and their close relatives or from laboratory models such as mice. Here, we compare data on shape, variance and integration through postnatal ontogeny for a placental mammal, the least shrew, Cryptotis parva, and a marsupial mammal, the gray short-tailed opossum, Monodelphis domestica. Cranial variance decreased dramatically from early to late ontogeny in Cryptotis, but remained stable through ontogeny in Monodelphis, potentially reflecting functional constraints related to the short gestation and early ossification of oral bones in marsupials. Both Cryptotis and Monodelphis showed significant changes in cranial integration throug...Continue Reading

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Citations

Nov 12, 2013·Zoology : Analysis of Complex Systems, ZACS·David A FloresNorberto P Giannini
Jul 9, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·A GoswamiP D Polly
Jun 5, 2016·Integrative and Comparative Biology·Anjali GoswamiMarcelo R Sánchez-Villagra
Jun 28, 2016·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Rui DiogoJulia L Molnar
Feb 18, 2017·Evolution & Development·Marcela Randau, Anjali Goswami
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Jul 14, 2017·Journal of Anatomy·Alberto Martín-SerraPaul Palmqvist
Sep 21, 2013·Nature Communications·Andrea Cardini, P David Polly
Jul 3, 2019·Proceedings of the National Academy of Sciences of the United States of America·Akinobu WatanabeAnjali Goswami
Jan 14, 2018·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Elizabeth M St ClairJonathan M G Perry
Aug 18, 2020·American Journal of Physical Anthropology·Hyunwoo JungNoreen von Cramon-Taubadel
Mar 28, 2013·Journal of Evolutionary Biology·A GoswamiV Weisbecker
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Feb 26, 2021·Journal of Anatomy·Janine M ZiermannRui Diogo
Feb 8, 2019·Integrative Organismal Biology·E M KellyK E Sears
Sep 1, 2021·Evolution & Development·Miriam L Zelditch, Anjali Goswami

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