Morphological similarity and molecular divergence of<i>Trochulus striolatus</i>and<i>T. montanus</i>, and their relationship to sympatric congeners (Gastropoda: Pulmonata: Hygromiidae)

Proćków, Małgorzata; Strzała, Tomasz; Kuźnik-Kowalska, Elżbieta; Mackiewicz, Paweł

doi:10.1080/14772000.2014.925986

Cited by 11 publications

(30 citation statements)

References 48 publications

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“…The complete list of sample sites and specimens, collected in three seasons between July and August 2011–2013 or analysed elsewhere [28,29], is shown in Table 1 and Fig 1. All the material is deposited in the Museum of Natural History in Wrocław, Poland.…”

Section: Methodsmentioning

confidence: 99%

“…We use this terminology because the name T . plebeius should rather be reserved for similar forms from the French and Swiss Jura [29]. In addition, vegetation and dominant plant species were recorded at each site and habitat specified (Table 1).…”

Section: Methodsmentioning

confidence: 99%

“…Abbreviations* specimens from Senckenberg Museum collections in Frankfurt (SMF) # measurements of type specimens from Falkner [32] a) sequences from GenBank analysed by Proćków et al [28,29]. …”

Section: Methodsmentioning

confidence: 99%

“…The research history of the genus was discussed in detail by [25]. Recent studies on Trochulus species have been based on both morphological and genetic data [16,26–29]. They revealed very complicated relationships among the taxa, raising questions about the status of forms resembling T .…”

Section: Introductionmentioning

confidence: 99%

“…Despite this quite precise description, identification of the species remains problematic [33]. The problems result from the considerable similarity in shell morphology among Trochulus species and a significant influence of the environment on variation in their shell size and shape, which have led to the assignment of extremely distinct morphological forms to the same species [29]. Hence, morphological characters alone may be an unreliable means of distinguishing species.…”

Section: Introductionmentioning

confidence: 99%

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Ongoing Speciation and Gene Flow between Taxonomically Challenging Trochulus Species Complex (Gastropoda: Hygromiidae)

et al. 2017

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Geographical isolation, selection and genetic drift can cause the geographical diversification of populations and lead to speciation. Land snail species in the genus Trochulus show overlaps in geographical ranges as well as in morphology, but genetic data do not always support the species-level taxonomy based on morphological characters. Such a group offers an excellent opportunity to explore the processes involved. We have addressed the problem by determining the status of the restricted endemic T. graminicola within the larger context of Trochulus taxonomy. We used an integrated approach based on morphological features, ecological preferences and two molecular markers: mitochondrial COI sequences and microsatellites. Comparison of these results demonstrated: (i) conchological distinction of T. striolatus and T. sericeus; (ii) anatomical, ecological and genetic differentiation of T. graminicola and (iii) concordance between morphological characters and mtDNA markers in T. striolatus. Moreover, our data showed an intricate evolutionary history within the genus Trochulus, which can be best explained by: (i) recent or ongoing gene flow between taxa or (ii) their large ancestral polymorphism. Both of these hypotheses suggest that diversification within this group of snails has occurred relatively recently. The mismatches between species defined on morphology and on molecular genetics indicate the complexity of the processes involved in the diversification of this genus.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ongoing Speciation and Gene Flow between Taxonomically Challenging Trochulus Species Complex (Gastropoda: Hygromiidae)

et al. 2017

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Redescription of the western Balkan species Xerocampylaea waldemari and its phylogenetic relationships to other Urticicolini (Gastropoda: Hygromiidae)

Proćków

Duda

Kruckenhauser

et al. 2019

Systematics and Biodiversity

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Phenotypic plasticity can explain evolution of sympatric polymorphism in the hairy snailTrochulus hispidus(linnaeus, 1758)

Kuźnik-Kowalska

Mackiewicz

2016

Curr Zool

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Morphological variation of snails from the genus Trochulus is so huge that their taxonomy is unclear. The greatest variability concerns forms hispidus and sericeus/plebeius, which are often considered as separate species. To evidence the species barriers, we carried out crossbreeding experiments between these two sympatric morphs. Moreover, we compared the shell morphology of laboratory-bred offspring with their wild parents to test if the variation can be explained by the phenotypic plasticity model. We found that the two Trochulus morphs show no reproductive barriers. The fecundity rates, the mean clutch size, and F1 viability observed for all crosses were not signiﬁcantly different. In hybrid crosses (in F2 generation), we also recorded reproduction compatibility, similar fecundity, and hatching success as in their parents. Accordingly, phylogenetic analyses revealed the significant grouping of sequences from these different morphs and supported no constrains in reproduction between them. Comparison of shell morphology between wild and laboratory samples showed that various characters appeared highly plastic. The average shell shape of the hispidus morph changed significantly from flat with wide umbilicus to elevated with narrower umbilicus such as in the sericeus/plebeius morph. All these findings indicate that the examined morphs do not represent separate biological species and the evolutionary process is not advanced enough to separate their genetic pool. Therefore, phenotypic plasticity has played a significant role in the evolution of Trochulus shell polymorphism. The two morphs can evolve independently in separate phylogenetic lineages under the influence of local environmental conditions.

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Morphological similarity and molecular divergence ofTrochulus striolatusandT. montanus, and their relationship to sympatric congeners (Gastropoda: Pulmonata: Hygromiidae)

Cited by 11 publications

References 48 publications

Ongoing Speciation and Gene Flow between Taxonomically Challenging Trochulus Species Complex (Gastropoda: Hygromiidae)

Ongoing Speciation and Gene Flow between Taxonomically Challenging Trochulus Species Complex (Gastropoda: Hygromiidae)

Redescription of the western Balkan species Xerocampylaea waldemari and its phylogenetic relationships to other Urticicolini (Gastropoda: Hygromiidae)

Phenotypic plasticity can explain evolution of sympatric polymorphism in the hairy snailTrochulus hispidus(linnaeus, 1758)

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