Spawning, copulation and inbreeding coefficients in marine invertebrates

Addison, Jason A.; Hart, Michael W.

doi:10.1098/rsbl.2005.0353

Cited by 115 publications

(80 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, heterozygote deficiencies at the other loci at Pillar Reef, which rarely differed from the Hardy-Weinberg equilibrium at other sites, may be generated by other processes. Heterozygote deficiencies appear to be especially common among marine invertebrates that cast sperm into the water column (Addison & Hart 2005). Thus, the presence of heterozygote deficiencies alone cannot be interpreted as a clear indication of null alleles.…”

Section: Discussionmentioning

confidence: 99%

Male reproductive success during spawning events of the octocoral Pseudopterogorgia elisabethae

Lasker¹,

Gutiérrez‐Rodríguez²,

Bala³

et al. 2008

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Many sessile organisms rely on the transport of one or both types of gametes for reproductive success. While sperm limitation has been reported in some species, high fertilization success has been observed in others including the branching octocoral Pseudopterogorgia elisabethae. In such cases, males may compete for eggs to fertilize and the local dispersion of sperm will be an important component of male success. Individual reproductive success of 91 male P. elisabethae colonies found within a 400 m 2 area on San Salvador Island, Bahamas was examined based on microsatellite analysis of planulae collected from female colonies. Larvae which were brooded on the surface of 4 different females were collected during 2 separate spawning events. Males in the study area were sampled, and parentage was assessed using 5 microsatellite loci and the paternity assignment program CERVUS 3.0. Twenty-five percent of the larvae were assigned sires with ≥80% likelihood and 87% of the planulae could have been sired by males within the study area. The success of males was not related to either distance to the female or to male colony size. On average, successful sperm only travelled 5.2 m and the success of individual males within the 400 m 2 study site was not significantly different from random expectations. Male P. elisabethae may follow spawning strategies that increase the likelihood of siring some planulae, spread success across multiple females and reduce variance in reproductive success.KEY WORDS: Gorgonian coral · Microsatellites · Paternity · Sperm · Dispersal · Male reproductive success Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 367: [153][154][155][156][157][158][159][160][161] 2008 studies have typically been based on paternity analysis of embryos produced in controlled matings involving only a few individuals (Yund & McCartney 1994, Yund 1995. The only study examining paternity in a natural spawning event (Coffroth & Lasker 1998) examined a population of the octocoral Plexaura kuna, in which there were only a few potential sires. Although these studies provide insights into the factors controlling mating patterns, they do not address sperm dispersal and reproductive success in most natural populations in which numerous males are present.The development of highly polymorphic DNA genetic markers such as microsatellites, has increased the possibility of assessing paternity within local populations containing multiple males. For instance, a large number of investigations in plants have used microsatellites to estimate the contribution of pollen dispersal to gene flow, and to assess mating patterns and male reproductive success in natural plant populations (Dow & Ashley 1998, Streiff et al. 1999, Konuma et al. 2000, Lian et al. 2001. In this study, we used microsatellites to assess male reproductive success and sperm dispersal in a population of the branching octocoral Pseudopterogorgia elisabethae.Pseudopterogorgia elisabethae is a gorgoniid alcyonacean wit...

show abstract

Section: Discussionmentioning

confidence: 99%

Male reproductive success during spawning events of the octocoral Pseudopterogorgia elisabethae

Lasker¹,

Gutiérrez‐Rodríguez²,

Bala³

et al. 2008

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…It remains difficult to disentangle correlation from causation in these data because of the high phylogenetic correlation between fertilization mode and predatory habit in most marine animal taxa (21). However, Bush et al (1) use caenogastropods (which are contactmaters that include both predatory and nonpredatory habits) to demonstrate that contact-mating is an essential ingredient in diversification.…”

Section: Lovenotwardrovethemesozoicmarinerevolutionmentioning

confidence: 99%

“…The fact that diversification in angiosperms-which are ecologically so different from marine animals-is also attributed to reproductive biology, suggests that fertilization mechanism, not ecology, should be considered the primary factor promoting diversification. Genetic surveys of marine invertebrates demonstrate that copulating species have greater genetic diversity and less inbreeding than broadcast spawners (21). Sexually selected and courting animal species are well established to have higher speciation rates relative to other lineages (27).…”

Section: Lovenotwardrovethemesozoicmarinerevolutionmentioning

confidence: 99%

Love, not war, drove the Mesozoic marine revolution

Novack-Gottshall

2016

Proc. Natl. Acad. Sci. U.S.A.

View full text Add to dashboard Cite

“…Heterozygote deficiency has been reported for many other marine invertebrates (Evans et al 2004;Zhang et al 2005). However, in many cases, its cause remains unknown (Addison and Hart 2005). Based on an analysis of our Micro-Checker results, null alleles appear to be a likely explanation.…”

Section: Discussionmentioning

confidence: 86%

Development and characterization of microsatellite markers for an endangered species,Epinephelus bruneus, to establish a conservation program

Kim

Lee

et al. 2012

Animal Cells and Systems

View full text Add to dashboard Cite

Kelp grouper (Epinephelus bruneus Bloch 1793) is a commercially important fish in Korea. In recent years, the catch of kelp grouper in the coastal waters of Korea has significantly declined. Despite its importance, little is known about its genetic diversity and conservation efforts are hampered. In this study, we isolated and characterized 12 microsatellite loci using an enrichment method based on magnetic/biotin capture of microsatellite sequences from a size-selected genomic library. All loci were readily amplified and contained TG/CA denucleotide repeats. To characterize each locus, 30 individuals from a natural E. bruneus population in the coastal waters of Jeju Island, Korea, were genotyped. All loci except three, KEm118, KEm154, and KEm219, were polymorphic, with an average of 8.1 alleles per locus (range 2Á18). The mean observed and expected heterozygosities were 0.47 (range 0.19Á1.00) and 0.61 (range 0.29Á0.92), respectively. A significant deviation from Hardy-Weinberg equilibrium was observed at three loci (KEm134, KEm184, and KEm283). These findings will be useful for effective monitoring and management of genetic variation of kelp grouper as well as for the implementation of a fisheries conservation program.

show abstract

Spawning, copulation and inbreeding coefficients in marine invertebrates

Cited by 115 publications

References 23 publications

Male reproductive success during spawning events of the octocoral Pseudopterogorgia elisabethae

Male reproductive success during spawning events of the octocoral Pseudopterogorgia elisabethae

Love, not war, drove the Mesozoic marine revolution

Development and characterization of microsatellite markers for an endangered species,Epinephelus bruneus, to establish a conservation program

Contact Info

Product

Resources

About