Genetic variation and population stucture in the blacklip abalone, Haliotis rubra

Brown, L. J.

doi:10.1071/mf9910077

Cited by 65 publications

(38 citation statements)

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“…The level of genetic isolation of the west and east samples shown by the microsatellites (Φ ST = 0.033), while relatively high compared to other studies (e.g. Brown 1991, allozymes F ST = 0.022; Hancock 2000, allozymes F ST = 0.009; Conod et al 2002, microsatel-lites F ST = 0.003), is an order of magnitude lower than that observed for the mtDNA data (Φ ST = 0.387). Hamm & Burton (2000) reported a similar value at allozyme loci in Haliotis cracherodii (F ST = 0.039), but that differentiation was, however, not supported by mtDNA data collected from the same samples.…”

Section: Discussionmentioning

confidence: 80%

Population genetic structure of the perlemoen Haliotis midae in South Africa: evidence of range expansion and founder events

Evans¹,

Sweijd²,

Bowie³

et al. 2004

Mar. Ecol. Prog. Ser.

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Genetic diversity in Haliotis midae, a highly valued and heavily exploited marine gastropod, was assessed using 3 marker types across samples from the species' range in South Africa. Variation was compared at 7 allozyme loci, 2 regions of mitochondrial DNA and 3 microsatellite loci. We conclude that populations of H. midae on either side of Cape Agulhas represent 2 independent reproductive stocks. The area of transition between the stocks coincides with oceanographic features of the region. Evidence from all 3 types of genetic marker indicates an isolated introduction event to the east of Cape Agulhas, and subsequent range expansion in an easterly direction. The disparity between allozyme data and the other 2 forms is seen as further evidence for the presence of balancing selection at allozyme loci.

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Section: Discussionmentioning

confidence: 80%

Population genetic structure of the perlemoen Haliotis midae in South Africa: evidence of range expansion and founder events

Evans¹,

Sweijd²,

Bowie³

et al. 2004

Mar. Ecol. Prog. Ser.

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“…Throughout their life cycle, abalone dispersal is generally limited to small scales (10s-100s of meters) so that individual abalone reefs are effectively self-recruiting populations (Prince et al, 1987(Prince et al, , 1988aMcShane et al, 1988;Brown, 1991;Shepherd and Brown, 1993;Temby et al, 2007). Growth rates, the average maximum size attained, and the size of maturity are often highly variable over both local (100s-1000s m) and regional scales (100s km) (Leighton and Boolootian, 1963;Sloan and Breen, 1988;Prince, 1989;Day and Fleming, 1992;Nash, 1992;Naylor and Andrew, 2001).…”

Section: Spatial Complexitymentioning

confidence: 99%

The novel use of harvest policies and rapid visual assessment to manage spatially complex abalone resources (Genus Haliotis)

Prince¹,

Peeters²,

Gorfine

et al. 2008

Fisheries Research

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“…In the marine environment, lack of a predictable relationship between genetic and geographic distance seems to be the rule rather than the exception. Marine taxa as diverse as sponge-dwelling shrimp (Duffy 1993); foraminifera (Benzie and Pandolfi 1991); cup-, soft-, and reef-building corals (Van Veghel and Bak 1993;Hellberg 1994;McFadden 1997); r.otifers (Fu et al 1991); abalone (Brown 1991); giant clams and ribbed mussels (Macaranas et al 1992;Sarver et. al.…”

Section: Indirect Estimates Of Gene Flowmentioning

confidence: 99%

SPATIAL SCALE OF GENETIC STRUCTURE AND AN INDIRECT ESTIMATE OF GENE FLOW IN EELGRASS, ZOSTERA MARINA

Ruckelshaus

1998

Evolution

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Abstract.-In this study, the first investigation of population structure in an aquatic angiosperm, I show that populations of a marine angiosperm (eelgrass, Zostera marina) are genetically differentiated at a number of spatial scales. I find also that there is no correspondence between geographic and genetic distances separating subpopulations, an increasingly common result in spatially stratified studies of genetic structure in marine invertebrates. F-statistics, calculated for two years from electrophoretic variation at five polymorphic allozyme loci, indicate significant genetic differentiation among sampling quadrats within each of two bays (6 = 0.064-0.208), between tide zones within a bay (6 = 0.025-0.157) and between bays (6 = 0.079). Spatial autocorrelation analysis was used to explore genetic differentiation at smaller spatial scales; estimated patch sizes (within which genetic individuals are randomly associated) indicated no appeciable genetic structure at scales less than 20 m X 20 m. Calculated values of F-statistics were a function of the spatial scale from which samples were drawn: increasing the size of the "subpopulation" included in calculation of fixation indices for the same "total" sample resulted in an increase in the magnitude of f (e.g., from 0.092 to 0.181) and a decrease in 6 (e.g., from 0.186 to 0.025). On the basis of the best estimate of the spatial scale of subpopulations, the effective number of migrants per generation (Nem) ranges from 1.1 to 2.8. Genetic consequences of the disturbance regime in the eelgrass habitat sampled were extreme variation between years in the allele richness and proportion of heterozygotes in a sample and a positive relationship between the extinction probability of patches and the genetic variance among them. The changes in F-statistics as a function of sampling scale and the observation that 6 among sampled quadrats was positively associated with the probability of extinction among quadrats indicated that indirect estimates of gene flow (Nem) calculated from 6 should be cautiously interpreted in populations that may not yet be in drift-migration equilibrium.

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Genetic variation and population stucture in the blacklip abalone, Haliotis rubra

Cited by 65 publications

References 0 publications

Population genetic structure of the perlemoen Haliotis midae in South Africa: evidence of range expansion and founder events

Population genetic structure of the perlemoen Haliotis midae in South Africa: evidence of range expansion and founder events

The novel use of harvest policies and rapid visual assessment to manage spatially complex abalone resources (Genus Haliotis)

SPATIAL SCALE OF GENETIC STRUCTURE AND AN INDIRECT ESTIMATE OF GENE FLOW IN EELGRASS, ZOSTERA MARINA

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