Evolution of Rodents

A special issue of Animals (ISSN 2076-2615).

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 3131

Special Issue Editor


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Guest Editor
École Pratique des Hautes Etudes, PSL Paris & UMR CNRS Biogéosciences, Dijon, France
Interests: evolution; rodents

Special Issue Information

Dear Colleagues,

Rodents are at the heart of many fields of research, from medicine to ecology and evolution. However, it would be far too simple to reduce rodents to mere laboratory animals or pests. Rodents are also the most diverse mammals in nature in terms of their life history traits and behavior, and 40% of mammalian species belong to the rodent order. As a whole, they can be considered a model group for studying evolutionary mechanisms, developmental processes, genetics, and phenotypic patterns.

The name “rodent” comes from the Latin “rodere” meaning to gnaw, so the very name “rodent” itself characterizes one of the most peculiar adaptations in mammals, since rodents have the broadest spectrum of dental patterns.

Rodents are widespread and occupy almost every kind of ecological niche. Most species are terrestrial, but all modes of locomotion are represented, such as arboreal, burrowing, and semi-aquatic. Rodents can also be considered a good proxy for understanding past evolutionary history and reconstructing past environments, as they experienced an explosive radiation at the time of their first occurrence in the Paleocene.

Even if rodents represent a highly diversified group, conserving the biodiversity of this largest order of mammals is essential in the current environmental context, as they are key species in many ecosystems.

All these characteristics make them a model group for addressing broad topics. Therefore, we invite original research papers that address a wide range of disciplines from evolution, conservation, ecology, genetics, phylogeography, paleontology, and biodiversity to global change. Special emphasis will be placed on interdisciplinary studies.

Dr. Sophie Montuire
Guest Editor

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Keywords

  • evolution
  • biodiversity
  • ecology
  • genetics
  • phylogeography
  • paleontology
  • systematics
  • EvoDevo

Published Papers (1 paper)

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Research

13 pages, 5276 KiB  
Article
Evaluation of the Taxonomic Status of Lesser Egyptian Jerboa, Jaculus jaculus: First Description of New Phylogroups in Tunisia
by Wissem Ghawar, Melek Chaouch, Souha Ben Abderrazak, Mohammed Ali Snoussi, Sadok Salem, Said Chouchen, Amor Bouaoun, Afif Ben Salah and Jihene Bettaieb
Animals 2022, 12(6), 758; https://doi.org/10.3390/ani12060758 - 17 Mar 2022
Cited by 2 | Viewed by 2453
Abstract
The taxonomy of the Lesser Egyptian jerboa, Jaculus (J.) jaculus (Dipodinae subfamily), was recently reevaluated, and the taxonomic status was defined by the presence of two cryptic species, J. jaculus (Linnaeus 1758) and J. hirtipes (Lichtenstein, 1823), with a [...] Read more.
The taxonomy of the Lesser Egyptian jerboa, Jaculus (J.) jaculus (Dipodinae subfamily), was recently reevaluated, and the taxonomic status was defined by the presence of two cryptic species, J. jaculus (Linnaeus 1758) and J. hirtipes (Lichtenstein, 1823), with a higher genetic divergence in the sympatric North African populations than in other studied parapatric populations. Using phylogenetic analysis of the cytochrome b (Cytb) gene from 46 specimens, we confirmed the new status in Tunisia; rodents were collected from two different biotopes belonging to the same locality at the ecological level (mountainous vs. Saharan) in the south of the country. The study of the eye lens weight of these specimens allowed the definition of a cutoff value (58.5 g), categorizing juveniles from adults. Moreover, this study confirmed the phylotaxonomic status of J. jaculus in Tunisia, as recently illustrated, into two distinct species, J. jaculus and J. hirtipes, and recorded for the first time the presence of two phylogroups among each of these rodent species. The lack of clear micro-geographical structure and biotope specificity between the two rodent species and their phylogroups was also highlighted. Full article
(This article belongs to the Special Issue Evolution of Rodents)
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