Project 3885: L. L. Voyta, A. V. Abramov, L. A. Lavrenchenko, V. Nicolas, E. A. Petrova, L. Y. Kryuchkova. 2021. Dental polymorphisms in Crocidura (Soricomorpha: Soricidae) and evolutionary diversification of crocidurine shrew dentition. Zoological Journal of the Linnean Society. Early View:null.
Specimen: Crocidura yaldeni Lavrenchenko, Voyta, Hutterer, 2016 (ZMMU/Theriology:S-165343)
View: 2D surface of upper teeth

Abstract

The upper dentition of Crocidura exhibits polymorphic characters that were revealed for the first time in this study via high-resolution X-ray computed microtomography. Our analyses of 11 Crocidura species and selected Diplomesodon, Suncus and Sylvisorex species from different geographical regions and size groups revealed the most complex character states of upper dentition in the Ethiopian endemic species Crocidura yaldeni. A three-dimensionally based geometric morphometric analysis revealed the dependence of variation in skull muzzle shape on alterations in general upper dentition, such as a reduction in the number of antemolars. Principal components analysis revealed highly significant shape alterations and morphological trajectories in C. yaldeni (and more moderate ones in Suncus murinus) toward the Sorex-like morphotype in the outgroup, and less significant shape alterations in Crocidura obscurior, Crocidura phanluongi and Crocidura sapaensis with double-rooted third antemolar. Cladistic analysis based on a new data matrix for 20 species and 46 characters allowed us to determine the directions of the morphological trajectories: the apomorphic state of the most complex antemolars of C. yaldeni is associated with deviating skull muzzle shape changes, which we determined to be attributable to neomorphosis, and the less significant alterations in the shape of other Crocidura with complex antemolars are attributable to regional adaptation.


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Article DOI: 10.1093/zoolinnean/zlab103

Project DOI: 10.7934/P3885, http://dx.doi.org/10.7934/P3885
This project containsMatrices
  • 186 Media
  • 1 Matrix
  • 19 Documents
  • 21 Taxa
  • 36 Specimens
  • 46 Characters
Total size of project's media files: 13.36G

Download Project SDD File
Total scored cells: 917
Total media associated with cells: 1
Total labels associated with cell media: 0
Characters
Total characters: 46
Total characters with associated media: 46
Total characters with media with labels: 0
Total character states: 108
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:45/1
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MorphoBank Project 3885

    Authors' Institutions

    • Muséum national d'histoire naturelle, Paris (Natural History Museum, Paris)

    • Centre National de la Recherche Scientifique (CNRS)

    • Saint Petersburg State University

    • Sorbonne Université

    • Russian Academy of Sciences

    • Zoological Institute

    • Severtsov Institute of Ecology and Evolution

    • Université des Antilles



    Members

    member name taxa specimens media media
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    notes  media
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    notes  medialabels
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    Leonid Voyta
    Project Administrator
    213618618646046460917
    (860, 0, 57)
    00100


    Taxonomic Overview for Matrix 'M27141' (20 Taxa)

    taxon unscored
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    "-" cellscell images labels on
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    [1] Sorex minutissimus
    Last Modified in 12/20/20
    0444402001
    [2] Sorex mirabilis
    Last Modified in 12/20/20
    0464600001
    [3] Neomys fodiens
    Last Modified in 12/20/20
    0414105001
    [4] Myosorex okuensis
    Last Modified in 12/20/20
    2414103001
    [5] Suncus etruscus
    Last Modified in 12/20/20
    0444302101
    [6] Suncus megalura
    Last Modified in 12/20/20
    0454501001
    [7] Suncus murinus
    Last Modified in 12/20/20
    1414104001
    [8] Sylvisorex johnstoni
    Last Modified in 12/20/20
    0424204001
    [9] Crocidura jouvenetae
    Last Modified in 12/20/20
    0454501001
    [10] Crocidura olivieri
    Last Modified in 12/20/20
    0444402001
    [11] Crocidura obscurior
    Last Modified in 12/20/20
    0424204001
    [12] Crocidura yaldeni
    Last Modified in 12/20/20
    0444402001
    [13] Crocidura lasiura
    Last Modified in 12/20/20
    0434303001
    [14] Crocidura leucodon
    Last Modified in 12/20/20
    0434303001
    [15] Crocidura serezkyensis
    Last Modified in 12/20/20
    0444402001
    [16] Crocidura zarudnyi
    Last Modified in 12/20/20
    0454501001
    [17] Crocidura phanluongi
    Last Modified in 12/20/20
    0424204001
    [18] Crocidura sapaensis
    Last Modified in 12/20/20
    0434303001
    [19] Crocidura zaitsevi
    Last Modified in 12/20/20
    0454501001
    [20] Diplomesodon pulchellum
    Last Modified in 12/20/20
    03636010001


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    Documents list40
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    Matrix downloads2Crocidurinae matrix (v. 03) (2 downloads);