Rapid Evolution of Reproductive Isolation in the Wild: Evidence from Introduced Salmon

Hendry, Andrew P.; Wenburg, John K.; Bentzen, Paul; Volk, Eric C.; Quinn, Thomas P.

doi:10.1126/science.290.5491.516

Cited by 465 publications

(445 citation statements)

References 33 publications

(33 reference statements)

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“…The lack of gene flow among lineages over thousands of generations despite relative geographic proximity suggests that they may have attained reproductive isolation and may deserve species status. Reproductive isolation in fish can evolve fast (Hendry, Wenburg, Volk, & Quinn, 2000), but criteria for species designation typically emphasize diagnosability, so that the detection of phenotypic differences among lineages will likely determine whether a taxonomic revision is warranted. Together with new species being discovered in poorly studied habitats (Tornabene et al, 2016), cryptic taxa may also contribute to the rich diversity of gobies.…”

Section: Taxonomic Implicationsmentioning

confidence: 99%

Cryptic lineage divergence in marine environments: genetic differentiation at multiple spatial and temporal scales in the widespread intertidal goby Gobiosoma bosc

Milá

Tassell

Calderón

et al. 2017

Ecology and Evolution

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The adaptive radiation of the seven-spined gobies (Gobiidae: Gobiosomatini) represents a classic example of how ecological specialization and larval retention can drive speciation through local adaptation. However, geographically widespread and phenotypically uniform species also do occur within Gobiosomatini. This lack of phenotypic variation across large geographic areas could be due to recent colonization, widespread gene flow, or stabilizing selection acting across environmental gradients. We use a phylogeographic approach to test these alternative hypotheses in the naked Haplotype phylogenies and spatial patterns of genetic diversity reveal frequent population bottlenecks followed by rapid population growth, particularly along the Gulf of Mexico. The magnitude of the genetic divergence among intraspecific lineages suggests the existence of cryptic species within Gobiosoma and indicates that modes of speciation can vary among lineages within Gobiidae.

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Section: Taxonomic Implicationsmentioning

confidence: 99%

Cryptic lineage divergence in marine environments: genetic differentiation at multiple spatial and temporal scales in the widespread intertidal goby Gobiosoma bosc

Milá

Tassell

Calderón

et al. 2017

Ecology and Evolution

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“…Human activities are known to influence the evolution of natural populations (Hendry & Kinnison 1999;Hendry et al 2000;Bradshaw & Holzapfel 2001;Koskinen et al 2002;Coltman et al 2003;Levinton et al 2003;Stockwell et al 2003;Olsen et al 2004), but it remains uncertain as to how such activities might impact evolutionary diversification itself. One obvious impact is that humans can cause some species to go extinct.…”

Section: Introductionmentioning

confidence: 99%

Possible human impacts on adaptive radiation: beak size bimodality in Darwin's finches

et al. 2006

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Adaptive radiation is facilitated by a rugged adaptive landscape, where fitness peaks correspond to trait values that enhance the use of distinct resources. Different species are thought to occupy the different peaks, with hybrids falling into low-fitness valleys between them. We hypothesize that human activities can smooth adaptive landscapes, increase hybrid fitness and hamper evolutionary diversification. We investigated this possibility by analysing beak size data for 1755 Geospiza fortis measured between 1964 and 2005 on the island of Santa Cruz, Galápagos. Some populations of this species can display a resourcebased bimodality in beak size, which mirrors the greater beak size differences among species. We first show that an historically bimodal population at one site, Academy Bay, has lost this property in concert with a marked increase in local human population density. We next show that a nearby site with lower human impacts, El Garrapatero, currently manifests strong bimodality. This comparison suggests that bimodality can persist when human densities are low (Academy Bay in the past, El Garrapatero in the present), but not when they are high (Academy Bay in the present). Human activities may negatively impact diversification in 'young' adaptive radiations, perhaps by altering adaptive landscapes.

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“…In the wild, temporal reproductive isolation results from differences in mating season in birds (Friesen et al, 2007), mating period in insects (Bush, 1969;Hendry et al, 2000), timing of gamete release in corals (Levitan et al, 2004), timing of migration and breeding in fishes , and time of mating in flies .…”

Section: Introductionmentioning

confidence: 99%

The clock gene cryptochrome of Bactrocera cucurbitae (Diptera: Tephritidae) in strains with different mating times

et al. 2009

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Differences in mating time between populations can give rise to premating reproductive isolation. Tephritid fruit flies exhibit large variation in mating time among intra-or inter-specific populations. We previously cloned the clock gene period from two strains of melon fly, Bactrocera cucurbitae; in one the individuals mate early during the day, whereas in the other the individuals mate later. These strains were originally established by divergent artificial selection for developmental time, 'short' and 'long', with early and late mating times, respectively. The deduced amino acid sequences of PERI-OD proteins for these two strains were reported to be identical. Here we cloned another clock gene cryptochrome (cry) from the two strains, and found two stable amino acid substitutions in the strains. In addition, the allele frequency at the two polymorphic sites of cry gene correlated with the circadian locomotor period (t) across strains, whereas the expression pattern of cry mRNA in the heads of flies taken from the short strain significantly differed from that from the long strain. These findings suggest that variation in the cry gene is related to differences in the circadian behaviour in the two strains, thus implying that the cry gene may have an important role in reproductive isolation.

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Rapid Evolution of Reproductive Isolation in the Wild: Evidence from Introduced Salmon

Cited by 465 publications

References 33 publications

Cryptic lineage divergence in marine environments: genetic differentiation at multiple spatial and temporal scales in the widespread intertidal goby Gobiosoma bosc

Cryptic lineage divergence in marine environments: genetic differentiation at multiple spatial and temporal scales in the widespread intertidal goby Gobiosoma bosc

Possible human impacts on adaptive radiation: beak size bimodality in Darwin's finches

The clock gene cryptochrome of Bactrocera cucurbitae (Diptera: Tephritidae) in strains with different mating times

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