Lineage divergence of a freshwater snail clade associated with post-Tethys marine basin development

Bunje, Paul; Lindberg, David R.

doi:10.1016/j.ympev.2006.06.026

Cited by 30 publications

(37 citation statements)

References 44 publications

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“…Consistent with this prediction, phylogeographic studies of amphidromous Atyid shrimp (Page et al, 2005(Page et al, , 2007Cook et al, 2006) and Galaxiid fishes (Waters and Wallis, 2001) from Australia and New Zealand show evidence for multiple losses of amphidromy, with widespread basal amphidromous lineages giving rise to multiple freshwater lineages that are restricted to watersheds. Within the Neritidae, the only genus with benthic development in fresh water (Theodoxus) occurs in Eurasia (Bunje and Lindberg, 2007), further supporting the prediction that the relative stability of continental riverine habitats supports the loss of planktonic larvae.…”

Section: The Evolution Of Dispersal In Amphidromous Speciessupporting

confidence: 61%

High gene flow due to pelagic larval dispersal among South Pacific archipelagos in two amphidromous gastropods (Neritomorpha: Neritidae)

2009

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Section: The Evolution Of Dispersal In Amphidromous Speciessupporting

confidence: 61%

High gene flow due to pelagic larval dispersal among South Pacific archipelagos in two amphidromous gastropods (Neritomorpha: Neritidae)

2009

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“…The high levels of mitochondrial genetic divergences detected among the four morphologically indistinct clades of D. petraeum (14–17% divergence in COI sequences and 9.3–10.9% in 16S) are equivalent to those of genetically and morphologically distinct species of other gastropod genera (e.g. Collin, 2005 for calyptraeid species of Bostrycapulus or Bunje & Lindberg, 2007 for species of the neritid genus Theodoxus ). This range of nucleotide divergence is also comparable with that reported between other congeneric pairs of species of several crustacean groups indicated by the same molecular markers (see Lejeusne & Chevaldonné, 2006 and references therein) and are higher than those cited in studies of marine cryptic species of other groups (average COI divergence is 11.3% between pairs of congeneric animal species according to Hebert, Ratnasingham & deWaard, 2003).…”

Section: Discussionmentioning

confidence: 93%

Hidden Mediterranean biodiversity: molecular evidence for a cryptic species complex within the reef building vermetid gastropod Dendropoma petraeum (Mollusca: Caenogastropoda)

Calvo

Templado

Oliverio

et al. 2009

Biological Journal of the Linnean Society

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The reef building vermetid gastropod Dendropoma petraeum inhabits the warmest waters of the Mediterranean Sea and is considered a threatened marine species. The aim of this study was to characterize its genetic structure throughout its whole distribution range using mitochondrial and nuclear sequence data. Because of its sessile adult lifestyle and lack of a pelagic larval stage, we expected a markedly subdivided population structure with limited levels of gene flow. Fragments of the mitochondrial genes cytochrome c oxidase subunit I (COI) and 16S rRNA (16S), were sequenced, along with the nuclear ribosomal cluster (internal transcribed spacer; ITS) in specimens from 18 localities. Our analyses identified four highly distinct phylogroups separated by a mean divergence of > 14% according to the COI sequence data or > 9% according to 16S, but differing only slightly in morphology. The nuclear data (ITS) indicated a lower substitution rate (divergence among groups of around 1%). These large genetic distances among the four lineages clearly point to the existence of a cryptic species complex within D. petraeum comprising at least four species. Differences in the characteristics of intracapsular larval development and protoconch were also detected among these lineages. The allopatric distribution of these cryptic species supports a predominantly vicariant-based cladogenetic pattern for the genus Dendropoma in the Mediterranean.

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“…The European neritid T. fluviatilis is generally considered to be a widely distributed limnic snail, but it also occurs in BW along the shorelines of the Black Sea and the Baltic Sea (Bunje, 2005;Bunje and Lindberg, 2007). Because this species does not have any pelagic larval stages, each population is quite stationary, which results in a patchy distribution of populations.…”

Section: Discussionmentioning

confidence: 99%

“…*P<0.05; **P<0.01; ***P<0.001. within one population are very similar in terms of shell size and patterning . However, across several different populations, the variability of these parameters seems to be high (Neumann, 1960;Kangas and Skoog, 1978;Zettler et al, 2004;Symanowski and Hildebrandt, 2010;Wiesenthal et al, 2018), although some mitochondrial marker genes have very similar sequences (Bunje, 2005;Bunje and Lindberg, 2007). Thus, to date it is unclear whether the differences in shell size and patterning may be explained by genetic variation (local adaptation) or by phenotypic or developmental plasticity (Glöer and Pešic, 2015).…”

Section: Discussionmentioning

confidence: 99%

Alanine, proline and urea are major organic osmolytes in the snailTheodoxus fluviatilisunder hyperosmotic stress

Wiesenthal

Müller

Harder

et al. 2019

Journal of Experimental Biology

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Hyperosmotic stress may result in osmotic volume loss from the body to the environment in animals that cannot control the water permeability of their integument. Euryhaline animals (which have a wide tolerance range of environmental salinities) have generally evolved the ability to counteract cell volume shrinkage by accumulating inorganic and organic osmolytes within their cells to balance internal and external osmolalities. Molluscs use very different combinations of amino acids and amino acid derivatives to achieve this goal. Theodoxus fluviatilis is a neritid gastropod that is distributed not only in limnic habitats in Europe but also in brackish waters (e.g. along the shoreline of the Baltic Sea). Animals from brackish sites survive better in high salinities than animals from freshwater locations. The results of the present study indicate that these differences in salinity tolerance cannot be explained by differences in the general ability to accumulate amino acids as organic osmolytes. Although there may be differences in the metabolic pathways involved in osmolyte accumulation in foot muscle tissue, the two groups of animals accumulate amino acid mixtures equally well when stepwise acclimated to their respective maximum tolerable salinity for extended periods. Among these amino acids, alanine and proline, as well as the osmolyte urea, hold a special importance for cell volume preservation in T. fluviatilis under hyperosmotic stress. It is possible that the accumulation of various amino acids during hyperosmotic stress occurs via hydrolysis of storage proteins, while alanine and proline are probably newly synthesised under conditions of hyperosmotic stress in the animals.

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Lineage divergence of a freshwater snail clade associated with post-Tethys marine basin development

Cited by 30 publications

References 44 publications

High gene flow due to pelagic larval dispersal among South Pacific archipelagos in two amphidromous gastropods (Neritomorpha: Neritidae)

High gene flow due to pelagic larval dispersal among South Pacific archipelagos in two amphidromous gastropods (Neritomorpha: Neritidae)

Hidden Mediterranean biodiversity: molecular evidence for a cryptic species complex within the reef building vermetid gastropod Dendropoma petraeum (Mollusca: Caenogastropoda)

Alanine, proline and urea are major organic osmolytes in the snailTheodoxus fluviatilisunder hyperosmotic stress

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