Subspecific genetic differences in the saddle-back tamarin (Saguinus fuscicollis) postcranial skeleton

American Journal of Primatology
L A KohnJ M Cheverud

Abstract

Saddle-back tamarins (Saguinus fuscicollis) have been differentiated into subspecies based on coat color and facial morphology. Morphology of first-generation genetic hybrids can provide an understanding of population differences and evolution that may otherwise be difficult to obtain. This study compares postcranial morphology in two hybrids of saddle-back tamarins (S. f. illigeri x S. f. lagonotus and S. f. illigeri x S. f. leucogenys) to the purebred subspecies. We examine whether postcranial morphology differs between the purebred subspecies and their hybrids, and whether hybrids exhibit heterosis indicative of genetic differences between the parental subspecies. Fifty postcranial dimensions, or traits, were measured on 287 S. fuscicollis skeletons. Measurements were corrected for sex differences and environmental differences (wild-derived or laboratory-born). Females were larger than males for most postcranial dimensions, especially in the pelvis. Significant environmental differences were found throughout the postcranial skeleton, with wild-derived animals generally larger than animals born in the laboratory. Significant heterosis was found for six postcranial traits in the S. f. illigeri x S. f. leucogenys cross, and het...Continue Reading

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Citations

Mar 19, 2008·Molecular Ecology·M J E CharpentierS C Alberts
Dec 12, 2012·American Journal of Physical Anthropology·Mary A Kelaita, Liliana Cortés-Ortiz
Jan 4, 2013·American Journal of Physical Anthropology·Dana L DurenRichard J Sherwood
Oct 7, 2009·Evolution; International Journal of Organic Evolution·Rebecca Rogers Ackermann, Jacqueline M Bishop
Jul 6, 2005·Journal of Human Evolution·Michael A SchillaciLisa Jones-Engel
May 15, 2016·Journal of Human Evolution·Kaleigh Anne Eichel, Rebecca Rogers Ackermann
Oct 13, 2018·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Luci Ann P Kohn, Gabriele R Lubach
Jun 22, 2019·Evolutionary Anthropology·Rebecca R AckermannDietmar Zinner

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