Plasticity of the Life Cycle of Xeropicta Derbentina (Krynicki, 1836), a Recently Introduced Snail in Mediterranean France

Kiss, Laurence; Labaune, Corinne; Magnin, Frédéric; Aubry, Sébastien

doi:10.1093/mollus/eyi030

Cited by 28 publications

(30 citation statements)

References 14 publications

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“…derbentina is a xerophilic species widespread in the circumMediterranean region. It originates in the eastern Mediterranean and the Middle East but is also abundant in southern France Kiss et al 2005). The shell of adult individuals is 10-16 mm in diameter.…”

Section: Test Organismsmentioning

confidence: 99%

Phenotypic diversity, population structure and stress protein-based capacitoring in populations of Xeropicta derbentina, a heat-tolerant land snail species

Lellis

Sereda

Geißler

et al. 2014

Cell Stress and Chaperones

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The shell colour of many pulmonate land snail species is highly diverse. Besides a genetic basis, environmentally triggered epigenetic mechanisms including stress proteins as evolutionary capacitors are thought to influence such phenotypic diversity. In this study, we investigated the relationship of stress protein (Hsp70) levels with temperature stress tolerance, population structure and phenotypic diversity within and among different populations of a xerophilic Mediterranean snail species (Xeropicta derbentina). Hsp70 levels varied considerably among populations, and were significantly associated with shell colour diversity: individuals in populations exhibiting low diversity expressed higher Hsp70 levels both constitutively and under heat stress than those of phenotypically diverse populations. In contrast, population structure (cytochrome c oxidase subunit I gene) did not correlate with phenotypic diversity. However, genetic parameters (both within and among population differences) were able to explain variation in Hsp70 induction at elevated but nonpathologic temperatures. Our observation that (1) population structure had a high explanatory potential for Hsp70 induction and that (2) Hsp70 levels, in turn, correlated with phenotypic diversity while (3) population structure and phenotypic diversity failed to correlate provides empirical evidence for Hsp70 to act as a mediator between genotypic variation and phenotype and thus for chaperone-driven evolutionary capacitance in natural populations.

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Section: Test Organismsmentioning

confidence: 99%

Phenotypic diversity, population structure and stress protein-based capacitoring in populations of Xeropicta derbentina, a heat-tolerant land snail species

Lellis

Sereda

Geißler

et al. 2014

Cell Stress and Chaperones

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show abstract

“…In its adult state, X. derbentina reaches shell sizes up to 16 mm in diameter. This annual species (Dieterich et al 2012;Kiss et al 2005) can often be found in areas with scarce vegetation, at the borders of agricultural areas and along roads. The ability to climb vertical objects can not only be seen as a way to protect these snails from overheating in consequence of high ground temperatures, as postulated by different authors (Cowie 1985;Pomeroy 1968).…”

Section: Introductionmentioning

confidence: 99%

Hsp70 and lipid peroxide levels following heat stress in Xeropicta derbentina (Krynicki 1836) (Gastropoda, Pulmonata) with regard to different colour morphs

Dieterich

Troschinski

Schwarz

et al. 2015

Cell Stress and Chaperones

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Terrestrial snails which live under dry and hot conditions need efficient mechanisms of adaptation to counteract the problems of desiccation and over-heating. A profoundly heat tolerant snail species is the Mediterranean Xeropicta derbentina, exhibiting different shell colour morphs ranging from pale white to darkly banded. Considering that dark-pigmented snails are believed to have a disadvantage due to faster heating, we investigated possible differences in the stress markers Hsp70 and lipid peroxideation between four pre-defined colour morphs which were exposed to different temperatures for eight hours. The highest Hsp70 levels were observed in response to 38-40°C. Levels decreased when this temperature was exceeded. Snails of a pre-defined colour category 3 (with a large black band at the umbilicus side of the shell) showed the most prominent Hsp70 response. Lipid peroxideation levels also showed a maximum at 38°C but displayed a second peak at rather high temperatures at which the Hsp70 level already had decreased (45-48°C). Particularly pure white snails (category 1) and the most pigmented ones (category 4) were found to have different levels of lipid peroxidation at 38°C and 45°C compared to the other morphs. A hypothesis involving a combined two-phase defence mechanism, to which both, the Hsp70 protection system and the antioxidant defence system, may contribute, is discussed.

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“…This form of population dynamics is found in slugs of Arion lusitanicus (Kozlowski and Sionek, 2000), Deroceras reticulatum (Natalia et al, 2008), and snails of Theba pisana (Heller, 1982), Xeropicta arenosa (Staikou and Lazaridou-Dimitriadou, 1991). Although some populations of Xeropicta derbentina (Kiss et al, 2005) and Succinea putris (Kuznik-Kowalska et al, 2013b) exhibit semelparous and annual life histories, it is unclear whether adults disappear in a season. In contrast, similarly to BS, non-synchronized semelparous life history in overlapping generation is found in hygromiid snails Monacha cartusiana (Staikou and Lazaridou-Dimitriadou, 1990a) and Trochulus hispidus (Kuznik-Kowalska et al, 2013a).…”

Section: Discussionmentioning

confidence: 99%

“…For example, terrestrial pulmonates Xeropicta derbentina (Kiss et al, 2005), Xerolenta obvia (Lazaridou and Chatziioznnou, 2005) and Theba pisana (Cowie, 1984;Baker and Vogelzang, 1988) as well as a tidal pulmonate Salinator takii (Kosuge, 2000) exhibit either an annual or two-year life cycle. The life span of the pond snail Lymnaea stagnalis varies from one to seven years (Boag and Pearlstone, 1979).…”

Section: Discussionmentioning

confidence: 99%

Synchronous and Non-Synchronous Semelparity in Sibling Species of Pulmonates

Nyumura

Asami²

2015

Zoological Science

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Diverse life histories have been documented in terrestrial pulmonates, which inhabit different regions in climate. Life history traits are often phenotypically plastic and vary depending on the environment. Thus, surveys using designs that control for the confounding effects of environment are needed to evaluate the evolutionary differences between populations of closely related species in the wild. We examined the life histories of sibling species of terrestrial pulmonate within two regions of similar climates. Bradybaena pellucida (BP) is endemic to Japanese islands, and has recently been expanding its distribution northeastward, whereas B. similaris (BS) has been introduced by humans into temperate and tropical regions worldwide. We found that these species exhibit discrete differences in population dynamics and life cycle, despite their close relatedness. The annual life cycle of BP is synchronized among individuals in a population. Thus, BP is univoltine with discontinuous generation. In contrast, BS individuals do not synchronize their growth or reproduction, and thus exhibit overlapping generations. Our results indicate that synchronized and non-synchronized population dynamics diverge relatively rapidly in semelparous pulmonates. This type of difference has not been documented in pulmonate life history, and may have been overlooked because only a few studies have explicitly compared life cycles of closely related species within the same climate. Our results provide a basis for further studies of life history evolution in pulmonates.Key words: life cycle, life history, population dynamics, land snail, Bradybaena, Gastropoda INTRODUCTIONThe life histories of animals and plants can be categorized as iteroparous or semelparous; iteroparity refers to repeated reproduction over separate periods in individual lifetime, whereas semelparity is characterized by death after reproduction in a single period (Roff, 1992;Young, 2010). This way of contrasting different life histories provides useful insights into the evolution of reproductive strategies. Among diverse organisms, however, distinctions between these categories may not necessarily be generally applicable, and remain controversial (Kirkendall and Stenseth, 1985;Hughes and Simons, 2014).In land gastropods including snails and slugs, Heller (2001) reviewed literature of 20 iteroparous and 15 semelparous genera. Since then, probable iteroparity in the genus Helicodonta (Maltz, 2003) and semelparity in Pupilla (Pokryszko, 2001) and Trochulus (Kuznik-Kowalska et al., 2013a) have been reported. Populations of Xerolenta obvia vary from iteroparity to semelparity, perhaps depending on environment (Lazaridou and Chatziioannou, 2005). Even among terrestrial pulmonates, wide ranges of variation have been documented in life span and cycle and other reproductive traits across diverse climatic ranges (Heller, 1990(Heller, , 2001Maltz, 2003;Kramarenko, 2013).To elucidate the processes and mechanisms of ecology and evolution responsible for the diversity of life history, t...

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Plasticity of the Life Cycle of Xeropicta Derbentina (Krynicki, 1836), a Recently Introduced Snail in Mediterranean France

Cited by 28 publications

References 14 publications

Phenotypic diversity, population structure and stress protein-based capacitoring in populations of Xeropicta derbentina, a heat-tolerant land snail species

Phenotypic diversity, population structure and stress protein-based capacitoring in populations of Xeropicta derbentina, a heat-tolerant land snail species

Hsp70 and lipid peroxide levels following heat stress in Xeropicta derbentina (Krynicki 1836) (Gastropoda, Pulmonata) with regard to different colour morphs

Synchronous and Non-Synchronous Semelparity in Sibling Species of Pulmonates

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