Special Issue "Chromosomal Variations In Amphibians and Reptiles"

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Genetics and Genomics".

Deadline for manuscript submissions: 31 August 2021.

Special Issue Editors

Prof. Gaetano Odierna
E-Mail Website
Guest Editor
Univ Naples Federico II, Dipartimento Biol, Via Cinthia, I-80126 Naples, Italy
Interests: amphibians; reptiles; karyotype; chromosome structure and rearrangements; chromosome banding; evolution
Dr. Marcello Mezzasalma
E-Mail Website
Guest Editor
Natural History Museum, London
Interests: evolution; amphibians; reptiles; cytogenetics; phylogenetics; biogeography
Prof. Fabio M. Guarino
E-Mail Website
Guest Editor
Università degli Studi di Napoli Federico II, Naples, Italy
Interests: amphibians; reptiles; morphology; ecology; karyology; evolution

Special Issue Information

Dear Colleagues,

Chromosome variations are important but still understudied drivers of biodiversity. Chromosome rearrangements (or macromutations) may precede or follow molecular differentiation, and they may either promote or be a result of processes of phylogenetic diversification. In either case, they can be treated as discrete markers in evolutionary, phylogenetic, and taxonomic studies, highlighting the occurrence of different evolutionary pathways. Amphibians and reptiles display distinct, peculiar genomic and karyological features and are promising study models to better understand different aspects of chromosomal variations in an evolutionary framework.

The aim of this Special Issue is to publish original research articles and reviews on inter- and intraspecific chromosome variations in different amphibian and reptile taxa.

We kindly invite you to share your latest findings on the following topics:

  • Karyological variability in phylogenetic diversification;
  • Hybridization and polyploidy;
  • Chromosome variations and speciation;
  • Sex chromosome evolution;
  • Role of mobile DNA elements in chromosome changes;
  • B chromosomes;
  • Pathogenic and neutral chromosome mutations;
  • New methods and approaches in evolutionary cytogenetics.

Prof. Gaetano Odierna
Dr. Marcello Mezzasalma
Prof. Fabio M. Guarino
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • karyotype mutations
  • chromosome rearrangements
  • chromosome diseases
  • amphibians
  • reptiles
  • evolution

Published Papers (1 paper)

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Karyological Diversification in the Genus Lyciasalamandra (Urodela: Salamandridae)
Animals 2021, 11(6), 1709; https://doi.org/10.3390/ani11061709 - 08 Jun 2021
Viewed by 760
We performed the first cytogenetic analysis on five out of the seven species of the genus Lyciasalamandra, including seven subspecies, and representatives of its sister genus Salamandra. All the studied species have a similar karyotype of 2n = 24, mostly composed of [...] Read more.
We performed the first cytogenetic analysis on five out of the seven species of the genus Lyciasalamandra, including seven subspecies, and representatives of its sister genus Salamandra. All the studied species have a similar karyotype of 2n = 24, mostly composed of biarmed elements. C-bands were observed on all chromosomes, at centromeric, telomeric and interstitial position. We found a peculiar taxon-specific NOR configuration, including either heteromorphic and homomorphic NORs on distinct regions of different chromosomes. Lyciasalamandra a.antalyana and L. helverseni showed two homomorphic NORs (pairs 8 and 2, respectively), while heteromorphic NORs were found in L. billae (pairs 6, 12), L. flavimembris (pairs 2, 12), L. l. luschani (pairs 2, 12), L. l. basoglui (pairs 6, 12), L. l. finikensis (pairs 2, 6) and S. lanzai (pairs 8, 10). Homomorphic NORs with an additional supernumerary site were shown by S. s. salamandra (pairs 2, 8) and S. s. gigliolii (pairs 2, 10). This unexpected highly variable NOR configuration is probably derived from multiple independent NOR translocations and paracentric inversions and correlated to lineage divergence in Lyciasalamandra. These results support the taxonomic validity of the studied taxa and are consistent with a hypothesized scenario of synchronous evolution in the genus. Full article
(This article belongs to the Special Issue Chromosomal Variations In Amphibians and Reptiles)
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