Effects of female mating status on copulation behaviour and sperm expenditure in the freshwater crayfish Austropotamobius italicus

Galeotti, Paolo; Pupin, Fabio; Rubolini, Diego; Sacchi, Roberto; Nardi, Pietro Angelo; Fasola, Mauro

doi:10.1007/s00265-006-0301-2

Cited by 26 publications

(38 citation statements)

References 31 publications

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“…While our data do not shed light on the source of this variation, a variety of postcopulatory behaviors are known in crayfish that may bias paternity success. Male crayfish may bias paternity by controlling the size of their sperm deposit , using sperm plugs to seal the spermatheca (Bauer and Min 1993), and removing or displacing previously deposited sperm and sperm plugs (Villanelli and Gherardi 1998;Galeotti et al 2007). Additionally, females may exert cryptic choice after copulation by adjusting their reproductive investment; for example, in single matings, female crayfish can alter investment in brood size and egg size depending on mate quality Gherardi 2008a, 2008b).…”

Section: Discussionmentioning

confidence: 99%

“…In crayfish, females produce usually a single brood annually and have the capacity to store sperm in their spermatheca throughout a mating season (Holdich and Reeve 1988;Buřič et al 2013), permitting multiple paternity within a single brood when the female is polyandrous and sperm mixing occurs. Male crayfish may bias paternity in their favor via several mating behaviors such as extruding sperm plugs (Holdich and Reeve 1988), interrupting mating pairs (Stein 1976), diluting sperm masses , and removing sperm masses from previous males (Villanelli and Gherardi 1998;Galeotti et al 2007). Additionally, female crayfish exhibit precopulatory choice for male body size (Aquiloni and Gherardi 2008a) and fighting ability (Aquiloni et al 2008), as well as postcopulatory cryptic female choice Aquiloni and Gherardi 2008b).…”

Section: Introductionmentioning

confidence: 99%

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Evidence for multiple paternity in two species of Orconectes crayfish

2014

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Multiple mating is expected to be common in organisms that produce large clutches as a mechanism by which sexual reproduction can enrich genetic variation. For freshwater crayfish, observation of multiple mating suggests the potential for high rates of multiple paternity, but genetic confirmation is largely lacking from natural populations. We studied paternity within wild-caught broods of two crayfish species in the genus Orconectes (Sanborn's crayfish (Orconectes sanbornii (Faxon, 1884)) and the Allegheny crayfish (Orconectes obscurus (Hagen, 1870))). Although females have been observed mating with multiple males, this is the first genetic confirmation of multiple paternity in broods of these two species. Berried females were collected in the field and maintained in aquaria until their eggs hatched. We amplified and genotyped extracted DNA from maternal and hatchling tissue for several microsatellite loci. For both species, paternity reconstruction (GERUD 2.0) yielded 2-3 sires per brood and no single paternity clutches. We discuss these results from natural populations in light of the body of work on reproductive ecology of decapod crustaceans and in the context of changes in life history following the transition from marine to freshwater habitats.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evidence for multiple paternity in two species of Orconectes crayfish

2014

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“…Crayfish growth and molting occurs largely during the summer, after which males undergo a molt into the Form I breeding morphology. Mating occurs in the fall, and polygamy in one or both sexes has been reported in a number of species (reviewed in Galeotti et al, 2007) and, in Orconectes placidus (Hagen, 1870), multiple paternity of single broods is apparently common (Walker et al, 2002). Females store sperm throughout the winter, which they use to fertilize eggs in the spring.…”

Section: Introductionmentioning

confidence: 97%

Agonistic Interactions Differ by Sex and Season in the Crayfish Orconectes Quinebaugensis

Warren

Saltzman

Buckholt

et al. 2009

Journal of Crustacean Biology

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“…Other factors, such as the feeding regime during ovarian development (Sáez-Royuela et al, 2006) which occurred in original streams, should be considered. Number of pleopodal eggs and survival rate are higher in females mated in group than in those individually inseminated (Sáez-Royuela et al, 2005); this is possibly due to sperm contribution from more males (Galeotti et al, 2007). …”

Section: Discussionmentioning

confidence: 94%

Reproduction experiment onAustropotamobius pallipescomplex under controlled conditions: Can hybrids be hatched?

Ghia

Fea

Bernini

et al. 2011

Knowl. Managt. Aquatic Ecosyst.

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Key-words:reproduction, hybrids, Austropotamobius pallipes complex, controlled conditionsThe Austropotamobius pallipes complex is formed by the two species A. pallipes and A. italicus, recently defined only on genetic basis, without obvious morphological features for their differentiation. Dealing with this problem, we have conducted a breeding experiment between these two presumed species under controlled conditions, in order to investigate the possible existence of reproductive barriers. Using 80 breeders (56 females and 24 males) collected from populations where their species identity was genetically well established, we performed four series of trials: F ita × M pal and F pal × M ita interspecific mating; F ita × M ita and F pal × M pal intraspecific mating as a control. We have monitored only the main phases of the reproduction in order to avoid excessive interference for the crayfish. In November 2009 the 91.7% of females having intraspecific mating, as well as the 100% of females having interspecific mating, produced eggs. In June 2010 the eggs from the 36.4% of females having intraspecific mating, and those from the 42.3% of females having interspecific mating did hatch. We emphasize the hatching of hybrids and their vitality. RÉSUMÉExpérience de reproduction du complexe Austropotamobius pallipes en conditions contrôlées : les hybrides peuvent-ils éclore ? Mots-clés :reproduction, hybrides, complexe Austropotamobius pallipes, conditions contrôlées Le complexe Austropotamobius pallipes est formé de deux espèces, A. pallipes et A. italicus, récemment définies sur des bases génétiques, sans caractères morphologiques évidents pour les différencier. Pour aborder cette question, nous avons conduit une expérience de reproduction entre ces deux espèces présu-mées en conditions contrôlées, de façon à rechercher l'existence possible de barrières de reproduction. Avec 80 reproducteurs (56 femelles et 24 mâles) collectés dans des populations où l'identité spécifique était bien établie, nous avons conduit quatre séries d'essais :Nous avons suivi seulement les phases principales de la reproduction pour éviter un dérangement excessif des écrevisses. En novembre 2009, 91,7 % des femelles après croisement intraspécifique et 100 % des femelles après croisement interspécifique ont produit des oeufs. En juin 2010, les oeufs de 36,4 % des femelles à croisement intraspéci-fique et 42,3 % des femelles à croisement interspécifique ont éclos. On insiste sur l'éclosion des hybrides et leur vitalité.

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Effects of female mating status on copulation behaviour and sperm expenditure in the freshwater crayfish Austropotamobius italicus

Cited by 26 publications

References 31 publications

Evidence for multiple paternity in two species of Orconectes crayfish

Evidence for multiple paternity in two species of Orconectes crayfish

Agonistic Interactions Differ by Sex and Season in the Crayfish Orconectes Quinebaugensis

Reproduction experiment onAustropotamobius pallipescomplex under controlled conditions: Can hybrids be hatched?

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