Estimation of Single Generation Migration Distances From Geographic Variation in Animal Mitochondrial Dna

Neigel, Joseph E.; Ball, Ian R.; Avise, John C.

doi:10.1111/j.1558-5646.1991.tb04415.x

Cited by 61 publications

(38 citation statements)

References 21 publications

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“…The validity of the assumption underlying this pattern has been explored and appears validated by theoretical studies (Neigel et al 1991;Neigel and Avise 1993). In other cases, such as a contiguous range expansion or long-distance colonization, the NCA may not detect all such demographic events (Templeton 1998), but are thought to be conservative and not prone to false positives (Templeton 2002).…”

Section: Cross-validation Of Nested Clade Analysis Inferencesmentioning

confidence: 89%

Phylogeny and Phylogeography of the Liolaemus Darwinii Complex (Squamata: Liolaemidae): Evidence for Introgression and Incomplete Lineage Sorting

et al. 2004

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Abstract. Although mitochondrial DNA markers have several properties that make them suitable for phylogeographic studies, they are not free of difficulties. Phylogeographic inferences within and between closely related species can be mislead by introgression and retention of ancestral polymorphism. Here we combine different phylogenetic, phylogeographic, and population genetic methods to extract the maximum information from the Liolaemus darwinii complex. We estimate the phylogeographic structure of L. darwinii across most of its distributional range, and we then estimate relationships between L. darwinii and the syntopic species L. laurenti and L. grosseorum. Our results suggest that range expansion of these lineages brought them into secondary contact in areas where they are presently in syntopy. Here we present the first evidence for introgression in lizards from temperate South America (of L. darwinii mitochondrial DNA into L. laurenti and L. grosseorum), and for incomplete lineage sorting (between L. darwinii and L. laurenti). We show that a combination of methods can provide additional support for inferences derived from any single method and thus provide more robust interpretations and narrow the range of plausible hypotheses about mechanisms and processes of divergence. Additional studies are needed in this group of lizards and in other codistributed groups to determine if Pleistocene climatic changes could be a general factor influencing the evolutionary history of a regional biota.

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Section: Cross-validation Of Nested Clade Analysis Inferencesmentioning

confidence: 89%

Phylogeny and Phylogeography of the Liolaemus Darwinii Complex (Squamata: Liolaemidae): Evidence for Introgression and Incomplete Lineage Sorting

et al. 2004

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“…Support for restricted gene flow can be established by evaluating relative levels of geographic dispersion (D c ) and the distance between geographic centers for each haplotype/clade and its nesting clade (D n ; Templeton et al 1995). Under the restricted gene flow model, an association between a haplotype's age and its distribution has been predicted from coalescence theory and simulations of dispersal/ mutation processes (Hudson 1990;Neigel et al 1991). These analyses predict that the most geographically widespread haplotypes are the oldest and ancestral to other haplotypes in the same clade.…”

Section: Discussionmentioning

confidence: 99%

Patterns of Intraspecific Diversification in the Piriqueta Caroliniana Complex in Southeastern North America and the Bahamas

Maskas

Cruzan

2000

Evolution

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Abstract. We use chloroplast DNA (cpDNA) variation and nested clade phylogeographic analyses to infer the historical processes that have contributed to the high level of morphological and ecological diversification present in a group of herbaceous perennials (the Piriqueta caroliniana complex) in North America and the Bahamas. The presence of morphologically distinct and intercompatible varieties (morphotypes) that can be distinguished based on suites of taxonomic characters (e.g., leaf shape, pubescence type, stature) and contrasting habitat affinities (from marshes to dry pinelands and sand scrub) makes this group particularly appropriate for studies of intraspecific diversification. To examine the distribution of haplotypes among populations, we sampled 467 individuals from 55 locations in Florida, Georgia, and the northern Bahamas (Grand Bahama and Abaco) and screened each individual for cpDNA variation using restriction fragment length polymorphism (RFLP) and heteroduplex analyses. We develop a one-step haplotype phylogeny for this group and use the geographic distributions of haplotypes and clades to test specific phylogeographic hypotheses using the methods developed by Templeton and his colleagues (Templeton 1998). In general, the distribution of haplotypes was strongly influenced by limited dispersal distances, with the more recently derived haplotypes having much lower levels of dispersion and lower frequencies in populations than the ancestral haplotypes. The patterns of clade and haplotype dispersion and displacement and the distribution of morphotypes imply at least three cases of long-distance dispersal and one case of historical fragmentation. The historical patterns inferred for populations of Piriqueta are consistent with known biogeographical events, historical vegetation change, and the concordant patterns of multiple Pleistocene refugia that have been observed for a number of other taxa in southeastern North America.

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“…In order to investigate this further it would be useful to analyse animals for which more accurate locations are known, e.g. from by-caught, rather than stranded animals, using, for example, the approach of Neigel et al (1991) which provides an estimate of average single-generation dispersal distance from a geographic survey of mtDNA variation.…”

Section: Discussionmentioning

confidence: 99%

Population structure of harbour porpoisesPhocoena phocoenain the seas around the UK and adjacent waters

Walton¹

1997

Proc. R. Soc. Lond. B

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SUMMARYThe population structure of harbour porpoises from British and adjacent waters was studied by examining variability in a 200 bp (base pair) section of the control region of mitochondrial DNA (mtDNA) extracted from 327 animals. This region contained 20 variable sites giving rise to 24 different haplotypes. Mean nucleotide diversity between all pairs of haplotypes was 0.81 % (range 0-4 %). The most common haplotype occurred in 63 % of the samples and was recorded in all geographical areas ; several other haplotypes were present in two or more of the sampling locations. This suggests considerable historical interconnections among populations, probably through gene flow. However, there were significant differences (p 0.05) as determined by  (Analysis of Molecular Variance, Excoffier et al. 1992), between porpoises from the northern and southern North Sea, and between the northern North Sea and the Celtic\Irish Sea. The differences were predominantly due to variation among females. This sexrelated difference in population genetic structure suggests that males disperse more than females. This has important consequences for evaluating the consequences of incidental catches of porpoises by fisheries in these seas since there may be a greater impact on local populations than is implied by simple calculations of mortality.

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Estimation of Single Generation Migration Distances From Geographic Variation in Animal Mitochondrial Dna

Cited by 61 publications

References 21 publications

Phylogeny and Phylogeography of the Liolaemus Darwinii Complex (Squamata: Liolaemidae): Evidence for Introgression and Incomplete Lineage Sorting

Phylogeny and Phylogeography of the Liolaemus Darwinii Complex (Squamata: Liolaemidae): Evidence for Introgression and Incomplete Lineage Sorting

Patterns of Intraspecific Diversification in the Piriqueta Caroliniana Complex in Southeastern North America and the Bahamas

Population structure of harbour porpoisesPhocoena phocoenain the seas around the UK and adjacent waters

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