How accurate are coat traits for discriminating wild and hybrid forms of Felis silvestris?
Date
2015-02
Authors
Ballesteros-Duperón, E.
Virgós, E.
Moleón, M.
Barea-Azcón, J.M.
Gil-Sánchez, J.M.
Journal Title
Journal ISSN
Volume Title
Publisher
Walter de Gruyter GmbH
Abstract
Hybridisation between domestic cats, Felis catus, and wildcats, Felis silvestris, could lead to the genetic extinction of the latter; therefore, checking hybridisation rates in wild populations is of vital conservation importance. However, detecting hybridisation in the field is particularly challenging. Here, we aim to test the success of morphological-based procedures for discriminating wildcats from their hybrids and domestic cats, against genetic methods. We checked 17 putative Spanish wildcats by using two different classification systems based on coat patterns. None of the putative wildcats analysed in this study seemed to have an admixed genotype. Concordance between genetic and pelage approaches was almost total: only one coat classification produced mixed results with detection of one potential hybrid. Assignment was worse when performed in the field after a rapid examination of coat characters. We conclude that classification systems using coat traits could serve as surrogates of genetic approaches, but only after careful examination of those characters with more discriminatory power. Thus, the control of hybrid populations in the field as a management tool to preserve the genetic identity of wild forms is problematic if based on crude approaches or incomplete classification systems.
Description
Keywords
genetic introgression, morphological discrimination, pelage characters, Spain, wildcat, accuracy assessment, classification, detection method, extinction, felid, genetic analysis, hybridization, introgression, morphology, pelage, phenotype, wild population, Felis catus, Felis silvestris
Citation
Ballesteros-Duperón, E. 2015. How accurate are coat traits for discriminating wild and hybrid forms of Felis silvestris? Mammalia 79 (1), pp. 101-110.