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A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea
The ultrastructure of the mature spermatozoa of Tergestia clonacantha and T. laticollis collected from the digestive tracts of fishes from New Caledonia is described using transmission electron microscopy and compared to that of related species. The spermatozoa of the two species exhibit the general...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
EDP Sciences
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7708231/ https://www.ncbi.nlm.nih.gov/pubmed/33258443 http://dx.doi.org/10.1051/parasite/2020066 |
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author | Ndiaye, Papa Ibnou Marchand, Bernard Bâ, Cheikh Tidiane Justine, Jean-Lou Bray, Rodney Alan Quilichini, Yann |
author_facet | Ndiaye, Papa Ibnou Marchand, Bernard Bâ, Cheikh Tidiane Justine, Jean-Lou Bray, Rodney Alan Quilichini, Yann |
author_sort | Ndiaye, Papa Ibnou |
collection | PubMed |
description | The ultrastructure of the mature spermatozoa of Tergestia clonacantha and T. laticollis collected from the digestive tracts of fishes from New Caledonia is described using transmission electron microscopy and compared to that of related species. The spermatozoa of the two species exhibit the general pattern described in most digeneans, namely two axonemes with the 9 + “1” pattern of the Trepaxonemata, nucleus, mitochondrion, cortical microtubules, an external ornamentation of the plasma membrane, spine-like bodies and granules of glycogen. The spermatozoa of T. clonacantha and T. laticollis show the same ultrastructural model with some specificities in each case, particularly in the disposition of the structures in the posterior extremities of the spermatozoon. This study confirms that ultrastructural characters of the mature spermatozoon are useful tools for the phylogenetic analysis of the Digenea. |
format | Online Article Text |
id | pubmed-7708231 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | EDP Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-77082312020-12-03 A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea Ndiaye, Papa Ibnou Marchand, Bernard Bâ, Cheikh Tidiane Justine, Jean-Lou Bray, Rodney Alan Quilichini, Yann Parasite Research Article The ultrastructure of the mature spermatozoa of Tergestia clonacantha and T. laticollis collected from the digestive tracts of fishes from New Caledonia is described using transmission electron microscopy and compared to that of related species. The spermatozoa of the two species exhibit the general pattern described in most digeneans, namely two axonemes with the 9 + “1” pattern of the Trepaxonemata, nucleus, mitochondrion, cortical microtubules, an external ornamentation of the plasma membrane, spine-like bodies and granules of glycogen. The spermatozoa of T. clonacantha and T. laticollis show the same ultrastructural model with some specificities in each case, particularly in the disposition of the structures in the posterior extremities of the spermatozoon. This study confirms that ultrastructural characters of the mature spermatozoon are useful tools for the phylogenetic analysis of the Digenea. EDP Sciences 2020-11-27 /pmc/articles/PMC7708231/ /pubmed/33258443 http://dx.doi.org/10.1051/parasite/2020066 Text en © P.I. Ndiaye et al., published by EDP Sciences, 2020 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Ndiaye, Papa Ibnou Marchand, Bernard Bâ, Cheikh Tidiane Justine, Jean-Lou Bray, Rodney Alan Quilichini, Yann A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea |
title | A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea |
title_full | A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea |
title_fullStr | A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea |
title_full_unstemmed | A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea |
title_short | A comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids Tergestia clonacantha and T. laticollis and contribution to the phylogenetic knowledge of the Gymnophalloidea |
title_sort | comparative study of the ultrastructural characteristics of the mature spermatozoa of two fellodistomids tergestia clonacantha and t. laticollis and contribution to the phylogenetic knowledge of the gymnophalloidea |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7708231/ https://www.ncbi.nlm.nih.gov/pubmed/33258443 http://dx.doi.org/10.1051/parasite/2020066 |
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