Analysis of Polycerate Mutants Reveals the Evolutionary Co-option of HOXD1 for Horn Patterning in Bovidae.

Allais-Bonnet, Aurélie; Hintermann, Aurélie; Deloche, Marie-Christine; Cornette, Raphaël; Bardou, Philippe; Naval-Sanchez, Marina; Pinton, Alain; Haruda, Ashleigh; Grohs, Cécile; Zakany, Jozsef; Bigi, Daniele; Medugorac, Ivica; Putelat, Olivier; Greyvenstein, Ockert; Hadfield, Tracy; Jemaa, Slim Ben; Bunevski, Gjoko; Menzi, Fiona; Hirter, Nathalie; Paris, Julia M; ... (2021). Analysis of Polycerate Mutants Reveals the Evolutionary Co-option of HOXD1 for Horn Patterning in Bovidae. Molecular Biology and Evolution, 38(6), pp. 2260-2272. Oxford University Press 10.1093/molbev/msab021

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In the course of evolution, pecorans (i.e. higher ruminants) developed a remarkable diversity of osseous cranial appendages, collectively referred to as 'headgear', which likely share the same origin and genetic basis. However, the nature and function of the genetic determinants underlying their number and position remain elusive. Jacob and other rare populations of sheep and goats are characterized by polyceraty, the presence of more than two horns. Here, we characterize distinct POLYCERATE alleles in each species, both associated with defective HOXD1 function. We show that haploinsufficiency at this locus results in the splitting of horn bud primordia, likely following the abnormal extension of an initial morphogenetic field. These results highlight the key role played by this gene in headgear patterning and illustrate the evolutionary co-option of a gene involved in the early development of bilateria to properly fix the position and number of these distinctive organs of Bovidae.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Institute of Genetics
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)

UniBE Contributor:

Menzi, Fiona; Hirter, Nathalie; Paris, Julia Maria and Drögemüller, Cord

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health
600 Technology > 630 Agriculture

ISSN:

0737-4038

Publisher:

Oxford University Press

Language:

English

Submitter:

Cord Drögemüller

Date Deposited:

08 Feb 2021 14:19

Last Modified:

22 May 2021 01:32

Publisher DOI:

10.1093/molbev/msab021

PubMed ID:

33528505

Uncontrolled Keywords:

Hox genes co-option goat and sheep genomics regulatory mutation

BORIS DOI:

10.48350/151913

URI:

https://boris.unibe.ch/id/eprint/151913

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