Taxonomy based on limited genomic markers may underestimate species diversity of rockhopper penguins and threaten their conservation

Frugone, María José; Cole, Theresa L.; López, María Eugenia; Clucas, Gemma; Matos‐Maraví, Pável; Lois, Nicolás A.; Pistorius, Pierre; Bonadonna, Francesco; Trathan, Phil ORCID: https://orcid.org/0000-0001-6673-9930; Polanowski, Andrea; Wienecke, Barbara; Raya‐Rey, Andrea; Pütz, Klemens; Steinfurth, Antje; Bi, Ke; Wang‐Claypool, Cynthia Y.; Waters, Jonathan M.; Bowie, Rauri C.K.; Poulin, Elie; Vianna, Juliana A.; Blakeslee, April. 2021 Taxonomy based on limited genomic markers may underestimate species diversity of rockhopper penguins and threaten their conservation. Diversity and Distributions, 27 (11). 2277-2296. https://doi.org/10.1111/ddi.13399

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Abstract/Summary

Delimiting recently diverged species is challenging. During speciation, genetic differentiation may be distributed unevenly across the genome, as different genomic regions can be subject to different selective pressures and evolutionary histories. Reliance on limited numbers of genetic markers that may be underpowered can make species delimitation even more challenging, potentially resulting in taxonomic inconsistencies. Rockhopper penguins of the genus Eudyptes comprise three broadly recognized taxa: northern (E. moseleyi), southern (E. chrysocome) and eastern rockhopper (E. filholi). Their taxonomic status has been controversial for decades, with researchers disagreeing about whether E. chrysocome and E. filholi are distinct species or conspecific. Our goal is to evaluate genome-wide patterns of divergence to evaluate genetic differentiation and species delimitation in rockhopper penguins, and to assess which mechanisms may underlie previous discordance among nuclear versus mitochondrial analyses.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1111/ddi.13399
ISSN:	1366-9516
Additional Keywords:	Eudyptes, genomics, rockhopper penguins, species delimitation
Date made live:	24 Sep 2021 13:22 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/531105

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1111/ddi.13399

ISSN:

1366-9516

Additional Keywords:

Eudyptes, genomics, rockhopper penguins, species delimitation

Date made live:

24 Sep 2021 13:22 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/531105