Monitoring the genetic diversity in holothurian populations from the Italian coasts with mitochondrial DNA sequences.
Holothuria
COI mitochondrial gene
Genetic diversity
Italian coasts
Sea cucumbers
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
19 Oct 2024
19 Oct 2024
Historique:
received:
22
07
2024
accepted:
10
10
2024
medline:
20
10
2024
pubmed:
20
10
2024
entrez:
19
10
2024
Statut:
epublish
Résumé
Sea cucumbers are deposit feeding members of marine benthic communities. The over-exploitation of sea cucumber natural stocks, especially in the Mediterranean basin, is having negative impacts on the marine ecosystem. This concerns had led the Italian government to take legal actions to preserve these important marine resources. The aim of this study was to evaluate the level of genetic diversity and population structures within two sympatric Holothuria sea cucumber species, H. polii and H. tubulosa, across ten Mediterranean areas along Italy. A 323 bp portion of the COI mitochondrial gene was sequenced in a total of 441 holothurians (251 H. polii, 177 H. tubulosa and 13 from other species). Genetic diversity analyses and analysis of molecular variance (AMOVA) suggest that H. polii and H. tubulosa species are distinct, but within and among populations are homogeneous, indicating active gene flows across the Mediterranean areas investigated. H. polii showed a lower genetic diversity than H. tubulosa, probably related to differences in life history traits. Phylogenetic analyses showed a clear differentiation between the two species, even if six specimens morphologically assigned to a species clustered within the other species, indicating a possible occurrence of hybridization events. These data will be useful in implementing conservation actions for these holothurian genetic resources.
Identifiants
pubmed: 39427087
doi: 10.1038/s41598-024-76087-5
pii: 10.1038/s41598-024-76087-5
doi:
Substances chimiques
DNA, Mitochondrial
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
24592Subventions
Organisme : Italian the Ministry of Agriculture, Food Sovereignty and Forestry
ID : Holothuria project
Informations de copyright
© 2024. The Author(s).
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