Population Genetics of the Blood Cockle, Tegillarca granosa (Linnaeus, 1758): A Study of Spatial Genetic Structure Across the Indonesian Archipelago

IF 1.5 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-04-14 DOI:10.1111/maec.70017

Eko Hardianto, Eko Setyobudi, Ratih Ida Adharini, Susanti Mugi Lestari

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Abstract

The blood cockle, Tegillarca granosa, holds significant importance within the Asian shellfish ecosystem, both in terms of economic viability and ecological significance. The investigation focused on examining the genetic diversity, historical biogeography, and population structure of the species in order to enhance our comprehension of its evolutionary history. We selected a total of five sites across the Indonesian Archipelago for sample collection. Sequence variation in a segment of mitochondrial DNA control region was characterized in a sample of 200 individuals. Genetic diversity (h = 0.88–0.96) and nucleotide diversity (π = 0.51–0.98) were found to be high compared to the estimates reported for many other similar shellfish taxa. Nonetheless, analysis of molecular variance revealed significant genetic differentiation, F_ST = 0.5530 (p < 0.0001 after Bonferroni corrections). Furthermore, the pairwise fixation index values exhibited significance across all population locations, indicating a constraint on dispersion potential and gene flow. This pattern presumably indicates restricted dispersion ability, facilitating local adaptation to specific locales, hence enhancing the biological, oceanographic, and geographic influences on genetic structure. The findings presented herein establish a basis for formulating improved conservation strategies for the target species.

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来源期刊

Marine Ecology-An Evolutionary Perspective 生物-海洋与淡水生物学

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Marine Ecology publishes original contributions on the structure and dynamics of marine benthic and pelagic ecosystems, communities and populations, and on the critical links between ecology and the evolution of marine organisms. The journal prioritizes contributions elucidating fundamental aspects of species interaction and adaptation to the environment through integration of information from various organizational levels (molecules to ecosystems) and different disciplines (molecular biology, genetics, biochemistry, physiology, marine biology, natural history, geography, oceanography, palaeontology and modelling) as viewed from an ecological perspective. The journal also focuses on population genetic processes, evolution of life histories, morphological traits and behaviour, historical ecology and biogeography, macro-ecology and seascape ecology, palaeo-ecological reconstruction, and ecological changes due to introduction of new biota, human pressure or environmental change. Most applied marine science, including fisheries biology, aquaculture, natural-products chemistry, toxicology, and local pollution studies lie outside the scope of the journal. Papers should address ecological questions that would be of interest to a worldwide readership of ecologists; papers of mostly local interest, including descriptions of flora and fauna, taxonomic descriptions, and range extensions will not be considered.