﻿The complete mitochondrial genome of the terrestrial snail Monacha cartusiana (O.F. Müller, 1774) (Gastropoda, Eupulmonata, Hygromiidae)

Kosicka, Ewa; Pieńkowska, Joanna R.; Lesicki, Andrzej

doi:10.3897/zookeys.1130.91325

Cited by 2 publications

(1 citation statement)

References 45 publications

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“…The order Stylommatophora is by far the best-known and largest order of the superorder Eupulmonata ( Gastropoda ), including approximately 25,000-30,000 terrestrial species in 104 families ( Mordan and Wade 2008 , Brusca et al 2016 , Doğan et al 2020 , Kosicka et al 2022 ). Stylommatophorans are comprised of land snails and slugs.…”

Section: Introductionmentioning

confidence: 99%

Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy)

Plazzi¹,

Pedroni²

2023

BDJ

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To date, there is a substantial lack of information about gastropods from the Tuscan-Emilian Apennine in the north of Italy, notwithstanding the availability of detailed and comprehensive literature on this molluscan class. We present a gastropod fauna from the Natural Reserve of the Pliocene Mountain Spur: to our knowledge, this is the first investigation of the extant gastropod fauna in the Tuscan-Emilian Apennine and one of the few in the Apennine's mountain chain as a whole. We describe a gastropod fauna comprised by 25 species, belonging to 18 genera and 10 families: the general figure which is emerging is an assemblage of European and Mediterranean-European species, with a single Asian contribution. Several shells were collected as embedded in sandy-clayey soils and showed fossilisation traces: therefore, we regard these shells as subfossil samples. Namely, subfossil shells are from the species Pomatias elegans, Granaria frumentum, Retinella olivetorum, Xerolenta obvia obvia, Oxychilus cf. draparnaudi, Monacha cartusiana and Monacha cantiana. The present checklist is the first report in the Tuscan-Emilian Apennine and Emilia-Romagna areas for six taxa: Morlina glabra glabra, Oxychilius alliarius, Xerosecta cespitum, Fruticicola fruticum, Xerogyra spadae and Xerolenta obvia obvia.

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Section: Introductionmentioning

confidence: 99%

Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy)

Plazzi¹,

Pedroni²

2023

BDJ

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High heteroplasmy is associated with low mitochondrial copy number and selection against non-synonymous mutations in the snail Cepaea nemoralis

Davison,

Chowdhury,

Johansen

et al. 2024

BMC Genomics

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Molluscan mitochondrial genomes are unusual because they show wide variation in size, radical genome rearrangements and frequently show high variation (> 10%) within species. As progress in understanding this variation has been limited, we used whole genome sequencing of a six-generation matriline of the terrestrial snail Cepaea nemoralis, as well as whole genome sequences from wild-collected C. nemoralis, the sister species C. hortensis, and multiple other snail species to explore the origins of mitochondrial DNA (mtDNA) variation. The main finding is that a high rate of SNP heteroplasmy in somatic tissue was negatively correlated with mtDNA copy number in both Cepaea species. In individuals with under ten mtDNA copies per nuclear genome, more than 10% of all positions were heteroplasmic, with evidence for transmission of this heteroplasmy through the germline. Further analyses showed evidence for purifying selection acting on non-synonymous mutations, even at low frequency of the rare allele, especially in cytochrome oxidase subunit 1 and cytochrome b. The mtDNA of some individuals of Cepaea nemoralis contained a length heteroplasmy, including up to 12 direct repeat copies of tRNA-Val, with 24 copies in another snail, Candidula rugosiuscula, and repeats of tRNA-Thr in C. hortensis. These repeats likely arise due to error prone replication but are not correlated with mitochondrial copy number in C. nemoralis. Overall, the findings provide key insights into mechanisms of replication, mutation and evolution in molluscan mtDNA, and so will inform wider studies on the biology and evolution of mtDNA across animal phyla.

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The complete mitochondrial genome of the terrestrial snail Monacha cartusiana (O.F. Müller, 1774) (Gastropoda, Eupulmonata, Hygromiidae)

Cited by 2 publications

References 45 publications

Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy)

Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy)

High heteroplasmy is associated with low mitochondrial copy number and selection against non-synonymous mutations in the snail Cepaea nemoralis

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﻿The complete mitochondrial genome of the terrestrial snail Monacha cartusiana (O.F. Müller, 1774) (Gastropoda, Eupulmonata, Hygromiidae)

Cited by 2 publications

References 45 publications

Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy)

Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy)

High heteroplasmy is associated with low mitochondrial copy number and selection against non-synonymous mutations in the snail Cepaea nemoralis

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The complete mitochondrial genome of the terrestrial snail Monacha cartusiana (O.F. Müller, 1774) (Gastropoda, Eupulmonata, Hygromiidae)