Multiple paternity and female-biased mutation at a microsatellite locus in the olive ridley sea turtle (Lepidochelys olivacea)

Hoekert, W.E.J.; Neuféglise, H; Schouten, Andrew; Menken, Steph B. J.

doi:10.1038/sj.hdy.6800103

Cited by 78 publications

(44 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…One school of thought maintains that multiple paternity may buffer against the loss of allelic diversity by increasing the effective population size (Sugg & Chesser 1994, Newcomer et al 1999, Martinez et al 2000, Hoekert et al 2002. This is countered by theoretical results indicating that by increasing the variance in male reproductive success (because each mating may result in fewer offspring per male than with genetic monogamy), multiple paternity will reduce effective population size and, consequently, limit population genetic diversity (Nunney 1993, Ramakrishnan et al 2004, Karl 2008.…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 57%

Is multiple mating beneficial or unavoidable? Low multiple paternity and genetic diversity in the shortspine spurdog Squalus mitsukurii

Daly‐Engel

Grubbs²,

Feldheim³

et al. 2010

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Proposed benefits of multiple paternity include increased reproductive output, elevated fitness of progeny, and maintenance of population genetic diversity. However, another consideration is whether multiple paternity is simply an unavoidable byproduct of sexual conflict, with males seeking to maximize mating encounters while females seek to minimize the stress of copulation. Here we examined the polyandrous mating system in sharks, with a focus on the reproductive genetics of the shortspine spurdog Squalus mitsukurii. Members of the genus Squalus are long-lived, slow-growing, and employ among the longest gestation periods of any vertebrate. To evaluate multiple paternity and genetic diversity in S. mitsukurii, we genotyped 27 litters plus 96 individuals with 8 microsatellite loci. Further, 670 bp of the mtDNA control region were sequenced in 112 individuals to examine population structure. S. mitsukurii in Hawaii showed low genetic diversity relative to other sharks (π = 0.0010 ± 0.0008) and no significant population structure in the Hawaiian Archipelago. Direct allele counts and Bayesian approximations returned concordant estimates of 11% multiple paternity, the lowest observed in sharks to date. Considering the protracted reproductive interval of S. mitsukurii, sexual conflict that results from differential male and female reproductive strategies may favor the development of female mating avoidance behavior to minimize trauma. In S. mitsukurii this behavior includes segregation of sexes and an asynchronous reproductive cycle.KEY WORDS: Elasmobranch · Polyandry · Control region · Microsatellite DNA · Population structure · Sexual conflict · Sexual segregation · Reproductive strategy Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 403: [255][256][257][258][259][260][261][262][263][264][265][266][267] 2010 females with conventional sex roles (reviewed by Zeh & Zeh 2003). Polyandry (females mating with more than one male) and multiple paternity (a single brood of offspring sired by multiple males) are now recognized as common strategies in widely divergent taxa including amphibians, mammals, reptiles, insects, crustaceans, and fishes (Evans & Magurran 2000, Toonen 2004, Adams et al. 2005, Bretman & Tregenza 2005, Daly-Engel et al. 2006, Dean et al. 2006, Jensen et al. 2006. It is still unclear, however, what roles sexual conflict and intersexual selection might play in polyandrous mating systems.For males, the advantages to having multiple breeding partners are clear: the more females a male inseminates, the more offspring he fathers and the greater his reproductive fitness. The benefits of polyandry to females are less obvious. Potential direct benefits to the female include nuptial gifts or parental care on the part of the male. No direct benefits have been shown in shark mating systems, though there is potential for indirect or genetic benefits through polyandrous mating. If there is little or no opportunity to evaluate males prior to copulation, a f...

show abstract

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 57%

Is multiple mating beneficial or unavoidable? Low multiple paternity and genetic diversity in the shortspine spurdog Squalus mitsukurii

Daly‐Engel

Grubbs²,

Feldheim³

et al. 2010

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Male-biased mutation has also been found in plants (Filatov and Charlesworth 2002;Whittle and Johnston 2002). The only example of female-biased mutation we are aware of is at a microsatellite locus in a sea turtle (Hoekeert et al 2002). Sex-biased mutation has not been found in other groups, including Drosophila (Bauer and Aquadro 1997), and it is not clear at present what the taxonomic distribution of the phenomenon is.…”

mentioning

confidence: 89%

Male-Biased Mutation, Sex Linkage, and the Rate of Adaptive Evolution

Kirkpatrick

Hall

2004

Evolution

View full text Add to dashboard Cite

Abstract. An interaction between sex-linked inheritance and sex-biased mutation rates may affect the rate of adaptive evolution. Males have much higher mutation rates than females in several vertebrate and plant taxa. When evolutionary rates are limited by the supply of favorable new mutations, then genes will evolve faster when located on sex chromosomes that spend more time in males. For mutations with additive effects, Y-linked genes evolve fastest, followed by Z-linked genes, autosomal genes, X-linked genes, and finally W-linked and cytoplasmic genes. This ordering can change when mutations show dominance. The predicted differences in substitution rates may be detectable at the molecular level. Male-biased mutation could cause adaptive changes to accumulate more readily on certain kinds of chromosomes and favor animals with Z-W sex determination to have rapidly evolving male sexual displays.

show abstract

“…Previous studies have demonstrated that the frequency of MP varies both between (Moore & Ball, 2002;Hoekert et al, 2002;Crim et al, 2002;Theissinger et al, 2008;Noble et al, 2013), and within species (Galbraith, 1993;FitzSimmons, 1998;Ireland et al, 2003;Jensen et al, 2006;LaBrecque et al, 2014). For green turtles, evidence of MP has been reported in several studies, but the proportion of clutches with MP varies among populations.…”

Section: Introductionmentioning

confidence: 96%

Does polyandry really pay off?: The effects of multiple mating and number of fathers on morphological traits and survival in clutches of nesting green turtles at Tortuguero

Alfaro-Núñez

Jensen

Abreu-Grobois

2014

Preprint

View full text Add to dashboard Cite

View the peer-reviewed version (peerj.com/articles/880), which is the preferred citable publication unless you specifically need to cite this preprint. (fathers who gives greater proportion of the offspring per nest). We found significant differences (P < 0.05) in clutches coded by the exact number of fathers for all morphological traits. A general tendency of higher values in offspring sired by two to three fathers was observed for the length and weight traits. However, emergence success and crawling speed showed different trends which unable us to reach any further conclusion. The second approach analysing the paternal contribution showed no significant difference (P > 0.05) for any of the traits. We conclude that multiple paternity does not provide any extra benefit in the morphological fitness traits or the survival of the offspring, when analysed following the proposed comparative statistical methods. Alfaro-Núñez

show abstract

Multiple paternity and female-biased mutation at a microsatellite locus in the olive ridley sea turtle (Lepidochelys olivacea)

Cited by 78 publications

References 28 publications

Is multiple mating beneficial or unavoidable? Low multiple paternity and genetic diversity in the shortspine spurdog Squalus mitsukurii

Is multiple mating beneficial or unavoidable? Low multiple paternity and genetic diversity in the shortspine spurdog Squalus mitsukurii

Male-Biased Mutation, Sex Linkage, and the Rate of Adaptive Evolution

Does polyandry really pay off?: The effects of multiple mating and number of fathers on morphological traits and survival in clutches of nesting green turtles at Tortuguero

Contact Info

Product

Resources

About