Genetic characterization of the razor clam Solen marginatus (Mollusca: Bivalvia: Solenidae) in Tunisian coasts based on isozyme markers

Hmida, Leila; Fassatoui, Chiheb; Ayed, D.; Ayache, Nadia; Romdhane, Mohamed Salah

doi:10.1016/j.bse.2011.10.016

Cited by 7 publications

(5 citation statements)

References 54 publications

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“…Excesses of heterozygotes are not commonly observed in bivalves, but they have been previously observed by Bonner et al (2019) for the same loci (α-Est-2) in individuals also collected in Paraty in the channel and mangrove environments. The phenomenon has also been observed for other bivalves, such as Mactra corallina (Chetoui et al 2012) and Solen marginatus (Hmida et al 2012). The causes associated with the excess of heterozygotes in the described cases were the action of natural selection against homozygosis (Hmida et al 2012) and a high rate of migration and dispersion of planktonic larvae (Chetoui et al 2012).…”

Section: Genetic Variationsupporting

confidence: 67%

“…The phenomenon has also been observed for other bivalves, such as Mactra corallina (Chetoui et al 2012) and Solen marginatus (Hmida et al 2012). The causes associated with the excess of heterozygotes in the described cases were the action of natural selection against homozygosis (Hmida et al 2012) and a high rate of migration and dispersion of planktonic larvae (Chetoui et al 2012). In the present study, the observed excesses could not have their cause defined.…”

Section: Genetic Variationsupporting

confidence: 67%

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Spatiotemporal analysis of the genetic and morphological variation of Iphigenia brasiliensis (Mollusca: Bivalvia) from the southwest tropical Atlantic

Gonçalves¹,

Silva²,

Bonner³

et al. 2023

Lat. Am. J. Aquat. Res.

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Iphigenia brasiliensis is a bivalve mollusk exploited as a shellfish and subsistence resource on the Brazilian coast, mainly in the north and northeast regions. Genetic (allozyme electrophoresis revealed eight gene loci) and morphological variations (multivariate morphometry of valves used 13 linear measurements of traditional and 19 Fourier coefficients of geometric morphometry) were studied, considering the geographic (445 km of the southwest tropical Atlantic), environmental (mangroves and channels of communication with the sea of three estuaries in the state of Rio de Janeiro), and temporal dimensions (over two years). I. brasiliensis showed high levels of genetic variation (the average number of alleles per locus ranged from 2.8 to 3.4, and the average heterozygosity ranged from 0.441 to 0.675). Bayesian analysis of population partitioning showed that the highest LnP(D) value was achieved for K = 3. These results indicated mixed ancestry, possibly oscillations in the dispersion dynamics among the different sampling groups, and temporal oscillations in the population sizes due to the anthropogenic influence on the studied estuaries. The results of morphological variation, inferred by the PERMANOVA from the Fourier analysis, indicated that a similar influence might occur in valves (also, the discriminant analysis showed that different groups could be consistently identified). In this sense, the studied populations may be organized in a dynamic of metapopulations. Finally, these are the first data on morphological and genetic variation of the species in the latitudinal, environmental, and temporal dimensions studied simultaneously, thus providing relevant information for the exploration, management, and conservation of this commercially important species.

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Section: Genetic Variationsupporting

confidence: 67%

Section: Genetic Variationsupporting

confidence: 67%

Spatiotemporal analysis of the genetic and morphological variation of Iphigenia brasiliensis (Mollusca: Bivalvia) from the southwest tropical Atlantic

Gonçalves¹,

Silva²,

Bonner³

et al. 2023

Lat. Am. J. Aquat. Res.

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“…The genetic bottleneck in Dp was accompanied by a loss of rare alleles in four out of six of the analyzed microsatellite loci. This suggests that nonselective random genetic drift had affected population Dp [ 44 , 45 ]. Based on the observed high values of several analyzed heavy metals, PAHs, and mineral oil hydrocarbons in the sediment, we can conclude that this site is exposed to contamination inflow, and that the bottleneck in population Dp had probably resulted from the WWTP effluent contamination [ 46 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of Freshwater Pollution on the Genetics of Zebra Mussels (Dreissena polymorpha) at the Molecular and Population Level

Thomas

Šrut

Štambuk

et al. 2014

BioMed Research International

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Revealing long-term effects of contaminants on the genetic structure of organisms inhabiting polluted environments should encompass analyses at the population, molecular, and cellular level. Following this concept, we studied the genetic constitution of zebra mussel populations from a polluted (Dp) and reference sites (Cl) at the river Drava, Croatia, and applied microsatellite and DNA damage analyses (Comet assay, micronucleus test (MNT)). Additionally, mussels from both populations were exposed to polluted wastewater in the laboratory for three days, and DNA damage was analyzed to evaluate acclimatization and genetic adaptation of the investigated populations to the polluted environment. The two populations differed in their genetic constitution. Microsatellite analysis suggested that Dp had undergone a genetic bottleneck. Comet assay did not indicate any difference in DNA damage between the two populations, but MNT revealed that Dp had an increased percentage of micronuclei in hemocytes in comparison to Cl. The laboratory experiment revealed that Dp had a lower percentage of tail DNA and a higher percentage of micronuclei than Cl. These differences between populations were possibly caused by an overall decreased fitness of Dp due to genetic drift and by an enhanced DNA repair mechanism due to acclimatization to pollution in the source habitat.

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“…(Solinidae, Bivalva) are shells with various morphological characteristics with a wide distribution tropical and subtropical beaches, including Indonesia. (Trisyani 2018;Yoon 2018;Hmida et al 2012;Rinyod and Rahim 2011;Simone 2009;Saedi et al 2009). Solen spp.…”

Section: Introductionmentioning

confidence: 99%

DNA barcoding of razor clam Solen spp. (Solinidae, Bivalva) in Indonesian beaches

margono

Rahayu

2020

Biodiversitas

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Abstract. Trisyani N, Rahayu DA. 2020. DNA barcoding of razor clam Solen spp. (Solinidae, Bivalva) in Indonesian beaches. Biodiversitas 21: 478-484. Solen spp. are shells with various morphological characteristics with a wide distribution of tropical and subtropical beaches, including Indonesia. The identification of Solen spp. is generally based on its morphological characteristics. This method is very problematic due to specimens share similarity in morphology and color. This study was using DNA barcode as a molecular identification tool. The bivalve COI sequence was amplified using PCR and molecular phylogenetic analysis using the Neighbor-Joining method. The amplified COI gene has a length of about 665 bp. The purpose of this study was to evaluate genetic variation and compare the phylogenetic Solen spp. in Indonesian waters. The composition of the nucleotide bases of Solen spp. the comparative species are A = 26.79%, C = 23.16%, G = 19.17% and T = 30.93%. The total nucleotide base A + T was 57.72%, while G + C was 42.33%. The results of phylogenetic analysis showed that Solen spp. Cirebon and Jambi are in one clade with Solen regularis with genetic distance 0.000 - 0.002. Solen spp. Surabaya, Bangkalan, Pamekasan, and Sumenep are in separate clades and are related to Solen grandis, Solen stricus and Solen lamarckii with genetic distance from 0.146 - 0.156. The diversity of nucleotide was 0.9780 and was divided into 12 haplotypes.

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Genetic characterization of the razor clam Solen marginatus (Mollusca: Bivalvia: Solenidae) in Tunisian coasts based on isozyme markers

Cited by 7 publications

References 54 publications

Spatiotemporal analysis of the genetic and morphological variation of Iphigenia brasiliensis (Mollusca: Bivalvia) from the southwest tropical Atlantic

Spatiotemporal analysis of the genetic and morphological variation of Iphigenia brasiliensis (Mollusca: Bivalvia) from the southwest tropical Atlantic

Effects of Freshwater Pollution on the Genetics of Zebra Mussels (Dreissena polymorpha) at the Molecular and Population Level

DNA barcoding of razor clam Solen spp. (Solinidae, Bivalva) in Indonesian beaches

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