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Morphological diversity of integumentary traits in fowl domestication: Insights from disparity analysis and embryonic development
Univ Zurich, Switzerland.
Univ Zurich, Switzerland.
Univ Zurich, Switzerland.
Niigata Univ, Japan.
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2019 (English)In: Developmental Dynamics, ISSN 1058-8388, E-ISSN 1097-0177Article, review/survey (Refereed) Epub ahead of print
Abstract [en]

The domestication of the fowl resulted in a large diversity of integumental structures in chicken breeds. Several integumental traits have been investigated from a developmental genetics perspective. However, their distribution among breeds and their developmental morphology remain unexplored. We constructed a discrete trait-breed matrix and conducted a disparity analysis to investigate the variation of these structures in chicken breeds; 20 integumental traits of 72 chicken breeds and the red junglefowl were assessed. The analyses resulted in slight groupings of breed types comparable to standard breed classification based on artificial selection and chicken type use. The red junglefowl groups together with bantams and European breeds. We provide new data on the red junglefowl and four chicken breeds, demonstrating where and when variation arises during embryonic development. We document variation in developmental timing of the egg tooth and feather formation, as well as other kinds of developmental patterning as in the anlagen of different type of combs. Changes in epithelial-mesenchymal signaling interactions may drive the highly diverse integument in chickens. Experimental and comparative work has revealed that the cranial neural crest mesenchyme mediates its interactions with the overlying epithelium and is the likely source of patterning that generates diversity in integumental structures.

Place, publisher, year, edition, pages
WILEY , 2019.
Keywords [en]
chicken; comb; egg tooth; embryology; evo-devo; feathers; morphospace
National Category
Developmental Biology
Identifiers
URN: urn:nbn:se:liu:diva-161151DOI: 10.1002/dvdy.105ISI: 000486521100001PubMedID: 31433887OAI: oai:DiVA.org:liu-161151DiVA, id: diva2:1365776
Note

Funding Agencies|Swiss Government Excellence Scholarship [2017.0924]; NIH/NIDCRUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Institute of Dental & Craniofacial Research (NIDCR) [R01DE025668]; Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen ForschungAustrian Science Fund (FWF) [31003A_169395]

Available from: 2019-10-25 Created: 2019-10-25 Last updated: 2019-10-25

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