High levels of polyandry, but limited evidence for multiple paternity, in wild populations of the western rock lobster (<i>Panulirus cygnus</i>)

Loo, Jacqueline; Kennington, W. Jason; Lestang, Simon de; How, Jason; Evans, Jonathan P.

doi:10.1002/ece3.3985

Cited by 5 publications

(1 citation statement)

References 68 publications

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“…Multiple mating is not necessarily indicative of multiple paternity, however, since females mated multiple times may exert postcopulatory selection that biases paternity in favor of one male (reviewed in Jennions and Petrie 2000; e.g. Loo et al 2018). By gaining knowledge on the mating systems of invasive species, we can get valuable insights into the success of these populations, and develop adequate management approaches to mitigate their impact on ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Multiple paternity in the invasive spotted lanternfly (Hemiptera: Fulgoridae)

Belouard,

Behm

2023

Environmental Entomology

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In biological invasions, multiple paternity can preserve genetic diversity over time and space and contribute to invasion success. Therefore, knowledge on the mating system of invasive species is essential to develop adequate management practices to mitigate their impact on ecosystems. The spotted lanternfly, Lycorma delicatula (White, 1845), is an invasive pest that has colonized more than 10 eastern US states in less than 10 yr. Multiple paternity may contribute to its success, but little is known about spotted lanternfly’s mating system. We explored the mating system using mated females and female–egg mass pairs sampled in the field. First, we assessed the existence of multiple mating by counting the number of spermatophores in the genital tract of all females. Second, we searched for genetic evidence for multiple paternity within egg masses by genotyping the female–egg mass pairs at 7 microsatellite loci. Third, we assessed whether multiple mating was correlated with female traits and distance from the introduction site. One to 3 spermatophores per female were found during dissections, confirming the existence of polyandrous female spotted lanternfly. We found genetic evidence for a minimum of 2 fathers in 4 egg masses associated with polyandrous females, validating multiple paternity in spotted lanternfly. Multiple paternity was associated with egg mass size, and multiple paternity was highest in populations closest to the original introduction site and decreased toward the invasion front. Multiple paternity may contribute to the invasion success of spotted lanternfly, and control efforts should consider the mating system and the implications of its spatial patterns.

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Section: Introductionmentioning

confidence: 99%

Multiple paternity in the invasive spotted lanternfly (Hemiptera: Fulgoridae)

Belouard,

Behm

2023

Environmental Entomology

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Reproduction efficiency of the leech Whitmania pigra and multiple paternity revealed by microsatellite analyses

Xiong

Wang

et al. 2020

Invertebrate Reproduction & Development

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Multiple paternity in the intertidal zone porcelain crabPetrolisthes cinctipesRandall, 1840 (Decapoda: Anomura: Porcellanidae) is a life-history strategy that increases fitness during heat stress

Yockachonis

McKeon

Windsor

et al. 2020

Journal of Crustacean Biology

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Multiple paternity is widespread across animal and plant taxa and can increase genetic diversity and enhance fitness, especially in unpredictable environments. A prior study of the intertidal zone porcelain crab, Petrolisthes cinctipes (Randall, 1840), found that most females carried polyandrous broods. We tested the hypothesis that multiple paternity in P. cinctipes enhances fitness through increased average brood tolerance to temperature stress. Embryonic survival of split broods (N = 27) was measured under ambient conditions and following a single one-hour heat shock at 30 °C. Two microsatellite loci were used to genotype embryos and mothers in order to distinguish multiple from single paternity in each brood. Mean overall hatching percentage did not differ between singly and multiply sired broods; however, when exposed to a heat-shock, single-sired broods experienced 11% lower hatching success. Though relative fitness was higher in single-sired broods under non-stressful conditions, extrapolation of our results to conditions where temperatures are at least 30 °C (present-day extremes for the California coast) for > 2 days of the embryonic brood period, multiply sired broods have a relative fitness that is approximately 24 times higher after 15 generations. Maternal quality (size) and the timing of the heat shock relative to developmental timing also influence the brood response to heat shock. Our results suggest that multiple paternity reduces embryo survival variance between ambient and heat-shock conditions and that polyandrous behavior could be an advantage for P. cinctipes in the thermally variable high-intertidal zone. We conclude that multiple paternity is an important strategy for increasing fitness by genetic diversification in organisms that experience severe and unpredictable levels of environmental stress.

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High levels of polyandry, but limited evidence for multiple paternity, in wild populations of the western rock lobster (Panulirus cygnus)

Cited by 5 publications

References 68 publications

Multiple paternity in the invasive spotted lanternfly (Hemiptera: Fulgoridae)

Multiple paternity in the invasive spotted lanternfly (Hemiptera: Fulgoridae)

Reproduction efficiency of the leech Whitmania pigra and multiple paternity revealed by microsatellite analyses

Multiple paternity in the intertidal zone porcelain crabPetrolisthes cinctipesRandall, 1840 (Decapoda: Anomura: Porcellanidae) is a life-history strategy that increases fitness during heat stress

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