García-Souto, D. orcid.org/0000-0002-0997-8799, Alonso-Rubido, S., Costa, D. et al. (5 more authors) (2018) Karyotype Characterization of Nine Periwinkle Species (Gastropoda, Littorinidae). Genes , 9 (11). 517. ISSN 2073-4425
Abstract
Periwinkles of the family Littorinidae (Children, 1834) are common members of seashore littoral communities worldwide. Although the family is composed of more than 200 species belonging to 18 genera, chromosome numbers have been described in only eleven of them. A molecular cytogenetic analysis of nine periwinkle species, the rough periwinkles Littorina arcana, L. saxatilis, and L. compressa, the flat periwinkles L. obtusata and L. fabalis, the common periwinkle L. littorea, the mangrove periwinkle Littoraria angulifera, the beaded periwinkle Cenchritis muricatus, and the small periwinkle Melarhaphe neritoides was performed. All species showed diploid chromosome numbers of 2n = 34, and karyotypes were mostly composed of metacentric and submetacentric chromosome pairs. None of the periwinkle species showed chromosomal differences between male and female specimens. The chromosomal mapping of major and minor rDNA and H3 histone gene clusters by fluorescent in situ hybridization demonstrated that the patterns of distribution of these DNA sequences were conserved among closely related species and differed among less related ones. All signals occupied separated loci on different chromosome pairs without any evidence of co-localization in any of the species.
Metadata
Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). |
Keywords: | chromosome; fluorescent in situ hybridization; histone genes; periwinkles; ribosomal RNA genes |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Biosciences (Sheffield) > Department of Animal and Plant Sciences (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 08 Nov 2018 13:05 |
Last Modified: | 08 Nov 2018 13:05 |
Published Version: | https://doi.org/10.3390/genes9110517 |
Status: | Published online |
Publisher: | MDPI |
Refereed: | Yes |
Identification Number: | https://doi.org/10.3390/genes9110517 |
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