Reticulate evolution: ancient introgression of the Adriatic brown trout mtDNA in softmouth trout Salmo obtusirostris (Teleostei: Salmonidae)

Sušnik, Simona; Weiss, Steven; Odak, Tea; Delling, Bo; Treer, Tomislav; Snoj, Aleš

doi:10.1111/j.1095-8312.2007.00717.x

Cited by 45 publications

(43 citation statements)

References 56 publications

(55 reference statements)

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“…The greater genetic differentiation of BES_24, BED_7 and PEZ_E15 individuals, observed using D-loop, wasn't corroborated by the microsatellites. The differing phylogenetic signal has previously been observed in some fish species (Freyhof et al 2005;Sušnik et al 2007) and in mammals (Kingston et al 2009). Recently, Wang et al (2011) reported that the cross between a triploid male gibel carp and a gynogentic female clone resulted in a novel nucleocytoplasmic hybrid clone, where the nucleus came from the male, whereas the mtDNA came from the female; suggesting that the novel clone might have arisen via androgenesis by a mechanism of ploidy doubling of male sperm in female ooplasm.…”

Section: The Origin Of Croatian Cac Populationsmentioning

confidence: 80%

Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia

Jakovlić

Gui

2011

Genetica

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Carassius auratus is an invasive species in European waters, comprising a complex of diploid and polyploid forms with different modes of reproduction. However, the evolutionary history and relationships between the diploids and polyploids are still unresolved. In this study, 51.5% diploids and 48.5% triploids, including four triploid males, were discovered among the 363 individuals sampled in Croatia. We used eight microsatellite loci and mitochondrial displacement loop sequences to analyze the structure and origin of populations; and to attempt to infer the evolutionary history of the two different forms in Croatia. Microsatellite analyses revealed high allelic and clonal diversity, corroborating that high propagule vectors can compensate for the negative effects of genetic bottlenecks in successful invasive species. The absence of significant population structuring confirmed recent origin and rapid spreading of populations. No evidence was found for the existence of native European populations. Distances between individuals using both nuclear and mtDNA markers revealed the absence of substantial clustering on the ploidy level, while the split between the different ploidies on population level was only partial, suggesting that the reproductive isolation between the two forms is either of a very recent origin, or that there exists uni-, or bidirectional gene flow between the diploid and triploid forms.

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Section: The Origin Of Croatian Cac Populationsmentioning

confidence: 80%

Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia

Jakovlić

Gui

2011

Genetica

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“…S5). We excluded wolf populations for which structure analysis suggested substantial admixture with coyotes (see above), as admixture would be expected to cause reticulation in relationship trees (Posada and Crandall 2001;Susnik et al 2007;Addison and Pogson 2009). Rooted with the coyote, Old and New World populations are the first division in the gray wolf tree (Supplemental Fig.…”

Section: Global Patterns Of Population Subdivisionmentioning

confidence: 99%

A genome-wide perspective on the evolutionary history of enigmatic wolf-like canids

vonHoldt¹,

Pollinger²,

Earl³

et al. 2011

Genome Res.

275

443

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High-throughput genotyping technologies developed for model species can potentially increase the resolution of demographic history and ancestry in wild relatives. We use a SNP genotyping microarray developed for the domestic dog to assay variation in over 48K loci in wolf-like species worldwide. Despite the high mobility of these large carnivores, we find distinct hierarchical population units within gray wolves and coyotes that correspond with geographic and ecologic differences among populations. Further, we test controversial theories about the ancestry of the Great Lakes wolf and red wolf using an analysis of haplotype blocks across all 38 canid autosomes. We find that these enigmatic canids are highly admixed varieties derived from gray wolves and coyotes, respectively. This divergent genomic history suggests that they do not have a shared recent ancestry as proposed by previous researchers. Interspecific hybridization, as well as the process of evolutionary divergence, may be responsible for the observed phenotypic distinction of both forms. Such admixture complicates decisions regarding endangered species restoration and protection.

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“…Fifteen microsatellites (BFRO002, Ssa197, Str591, Str24, BFRO001, Ssosl438, Str58, Str-LDH4, Onel2, Ssa410, Sssp2216, Ssa408, SsaD190, Omm1064, Sssp2213) were analysed. GenBank accession numbers, original references and PCR-protocols have been described elsewhere (Sušnik et al 2007;and Lerceteau-Kö hler and Weiss 2006).…”

Section: Samples and Microsatellite Setmentioning

confidence: 99%

Genetic composition of the Jadro softmouth trout following translocation into a new habitat

et al. 2006

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Genetic founder effects of a historical translocation (1965; app. 12 generations ago) of endangered softmouth trout from the only remaining indigenous population to an adjacent uninhabited river were investigated. A comparison of 15 microsatellites from contemporary samples in both the source and re-established populations indicated a very low level of genetic diversity within the two populations. Furthermore, considerable differences in estimates of variability and effective population sizes were detected between populations, but no recent bottlenecks were evident. Our data suggest that the re-established population has lost variation due to genetic drift associated with founder effects following the translocation. Accordingly, in relation to management, we suggest that the re-established population could serve as a secondary source of individuals to buffer possible extinction due to demographic events. Finally, conservation initiatives to enhance the census population size and increase levels of variability in the re-established population are proposed.

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Reticulate evolution: ancient introgression of the Adriatic brown trout mtDNA in softmouth trout Salmo obtusirostris (Teleostei: Salmonidae)

Cited by 45 publications

References 56 publications

Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia

Recent invasion and low level of divergence between diploid and triploid forms of Carassius auratus complex in Croatia

A genome-wide perspective on the evolutionary history of enigmatic wolf-like canids

Genetic composition of the Jadro softmouth trout following translocation into a new habitat

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