Genomic insights into the Montseny brook newt (Calotriton arnoldi), a Critically Endangered glacial relict
Talavera, Adrián (Institut de Biologia Evolutiva (UPF-CSIC) (Barcelona))
Palmada-Flores, Marc (Institut de Biologia Evolutiva (UPF-CSIC) (Barcelona))
Burriel-Carranza, Bernat (Institut de Biologia Evolutiva (UPF-CSIC) (Barcelona))
Valbuena Ureña, Emilio (Diputació de Barcelona. Servei de Gestió de Parcs Naturals)
Mochales-Riaño, Gabriel (Institut de Biologia Evolutiva (UPF-CSIC) (Barcelona))
Adams, Dean C. (Iowa State University. Department of Ecology, Evolution, and Organismal Biology)
Tejero-Cicuéndez, Héctor (Institut de Biologia Evolutiva (UPF-CSIC) (Barcelona))
Soler Membrives, Anna (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Amat Orriols, Fèlix (Museo de Ciencias Naturales de Granollers)
Guinart, Daniel (Diputació de Barcelona. Servei de Gestió de Parcs Naturals)
Carbonell, Francesc (Centre de fauna salvatge de Torreferrussa)
Obón, Elena (Centre de Fauna Salvatge de Torreferrussa (Santa Perpètua de la Mogoda, Catalunya))
Marques-Bonet, Tomas 1975- (Institut Català de Paleontologia Miquel Crusafont)
Carranza, Salvador (Institut de Biologia Evolutiva (UPF-CSIC) (Barcelona))

Date:	2024
Abstract:	The Montseny brook newt (Calotriton arnoldi), considered the most endangered amphibian in Europe, is a relict salamandrid species endemic to a small massif located in northeastern Spain. Although conservation efforts should always be guided by genomic studies, those are yet scarce among urodeles, hampered by the extreme sizes of their genomes. Here, we present the third available genome assembly for the order Caudata, and the first genomic study of the species and its sister taxon, the Pyrenean brook newt (Calotriton asper), combining whole-genome and ddRADseq data. Our results reveal significant demographic oscillations which accurately mirrored Europe's climatic history. Although severe bottlenecks have led to depauperate genomic diversity and long runs of homozygosity along a gigantic genome, inbreeding might have been avoided by assortative mating strategies. Other life history traits, however, seem to have been less advantageous, and the lack of land dispersal has driven to exceptional levels of population fragmentation.
Grants:	"la Caixa" Foundation LCF/BQ/DR20/11790007 "la Caixa" Foundation LCF/BQ/DR20/11790032 Ministerio de Ciencia, Innovación y Universidades FPU18/04742 Ministerio de Ciencia, Innovación y Universidades PRE2019-088729 Agencia Estatal de Investigación FJC2021-046832-I Agencia Estatal de Investigación PGC2018-098290-B-I00 Agencia Estatal de Investigación PID2021-128901NB-I00
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	iScience, Vol. 27, Issue 1 (January 2024) , art. 108665, ISSN 2589-0042

DOI: 10.1016/j.isci.2023.108665
PMID: 38226169

18 p, 4.6 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut Català de Paleontologia Miquel Crusafont (ICP)
Articles > Research articles
Articles > Published articles