Mitochondrial DNA Polymorphism, Sex Ratio Distorters and Population Genetics in the Isopod Armadillidium vulgare

Abstract Two maternally inherited sex ratio distorters (SRD) impose female-biased sex ratios on the wood louse Armadillidium vulgare by feminizing putative males. These SRD are (i) an intracytoplasmic bacterium of the genus Wolbachia, and (ii) another non-Mendelian element of unknown nature: the f element. Mitochondrial DNA variation was investigated in A. vulgare field populations to trace the evolution of host-SRD relationships and to investigate the effect of SRD on host cytoplasmic polymorphism. The Wolbachia endosymbionts showed no polymorphism in their ITS2 sequence and were associated with two closely related mitochondrial types. This situation probably reflects a single infection event followed by a slight differentiation of mitochondria. There was no association between the f element and a given mitochondrial type, which may confirm the fact that this element can be partially paternally transmitted. The spreading of a maternally inherited SRD in a population should reduce the mitochondrial diversity by a hitchhiking process. In A. vulgare, however, a within-population mtDNA polymorphism was often found, because of the deficient spread of Wolbachia and the partial paternal inheritance of the f element. The analysis of molecular variance indicated that A. vulgare populations are genetically structured, but without isolation by distance.

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Phylogeography of the California Thrasher (Toxostoma Redivivum) Based on Nested-Clade Analysis of Mitochondrial-DNA Variation

The Auk ◽

10.1093/auk/120.2.346 ◽

2003 ◽

Vol 120 (2) ◽

pp. 346-361

Author(s):

Erik A. Sgariglia ◽

Kevin J. Burns

Keyword(s):

Mitochondrial Dna ◽

Range Expansion ◽

Evolutionary History ◽

Isolation By Distance ◽

Nested Clade Analysis ◽

Dna Variation ◽

History Of ◽

Past Fragmentation ◽

Intraspecific Relationships ◽

Geologic Data

Abstract Distribution of genealogical lineages within a species is likely the result of a complicated series of ecological and historical events. Nested-clade analysis is specifically designed as an objective phylogeographic approach for inferring evolutionary processes on a spatial and temporal scale for small subclades within a larger set of intraspecific relationships. Here, we use nested-clade analysis as well as other phylogeographic methods to investigate the evolutionary history of California Thrasher (Toxostoma redivivum) populations. Inferences resulting from nested clade analysis suggest a history that includes past fragmentation, range expansion, and isolation-by-distance. Along with root information, those inferences enable the construction of a biogeographic scenario for this species involving general southern ancestry, an early north–south division, northward range expansion, and a southward back-expansion into an already populated southern region. Isolation-by-distance is also identified, particularly in southern California, indicating that gene flow between localities does occur but is restricted. Many conclusions drawn from this study are concordant with geologic data as well as phylogeographic scenarios drawn for other codistributed California taxa.

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Mitochondrial DNA variation within and among populations of the mosquito Aedes albopictus

Genome ◽

10.1139/g91-046 ◽

1991 ◽

Vol 34 (2) ◽

pp. 288-292 ◽

Cited By ~ 37

Author(s):

Srinivas Kambhampati ◽

Karamjit S. Rai

Keyword(s):

Mitochondrial Dna ◽

Genetic Variation ◽

Hong Kong ◽

Gene Flow ◽

Genetic Structure ◽

Aedes Albopictus ◽

Range Expansion ◽

Dna Variation ◽

Restriction Fragment Polymorphism ◽

Mtdna Polymorphism

A survey of restriction fragment polymorphism in mitochondrial DNA (mtDNA) of 17 populations of the mosquito Aedes albopictus was undertaken. The mtDNA size was estimated to be about 17.5 kbp. The level of polymorphism was low, with over 99% of the fragments being shared in common among the 17 populations. Three populations, Mauritius, Singapore, and Hong Kong, contained individuals with both the ancestral and novel mtDNA haplotypes. We conclude that the low level of mtDNA polymorphism in A. albopictus is a result of recent range expansion and that the mixture of haplotypes is a likely result of human-aided gene flow among populations.Key words: mitochondrial DNA, genetic variation, genetic structure, Aedes albopictus.

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Mitochondrial DNA polymorphism and feminizing sex factors dynamics in a natural population of Armadillidium vulgare (Crustacea, Isopoda)

Genetica ◽

10.1007/bf00057507 ◽

1993 ◽

Vol 92 (1) ◽

pp. 55-60 ◽

Cited By ~ 13

Author(s):

Fr�d�ric Grandjean ◽

Thierry Rigaud ◽

Roland Raimond ◽

Pierre Juchault ◽

Catherine Souty-Grosset

Keyword(s):

Mitochondrial Dna ◽

Natural Population ◽

Dna Polymorphism ◽

Sex Factors ◽

Mitochondrial Dna Polymorphism ◽

Armadillidium Vulgare

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Application of a random walk model to geographic distributions of animal mitochondrial DNA variation.

Genetics ◽

10.1093/genetics/135.4.1209 ◽

1993 ◽

Vol 135 (4) ◽

pp. 1209-1220 ◽

Cited By ~ 3

Author(s):

J E Neigel ◽

J C Avise

Keyword(s):

Mitochondrial Dna ◽

Isolation By Distance ◽

Natural Populations ◽

Data Sets ◽

Long Distance ◽

Dna Variation ◽

Distance Model ◽

Limited Dispersal ◽

Geographic Distributions ◽

Lineage Structure

Abstract In rapidly evolving molecules, such as animal mitochondrial DNA, mutations that delineate specific lineages may not be dispersed at sufficient rates to attain an equilibrium between genetic drift and gene flow. Here we predict conditions that lead to nonequilibrium geographic distributions of mtDNA lineages, test the robustness of these predictions and examine mtDNA data sets for consistency with our model. Under a simple isolation by distance model, the variance of an mtDNA lineage's geographic distribution is expected be proportional to its age. Simulation results indicated that this relationship is fairly robust. Analysis of mtDNA data from natural populations revealed three qualitative distributional patterns: (1) significant departure of lineage structure from equilibrium geographic distributions, a pattern exhibited in three rodent species with limited dispersal; (2) nonsignificant departure from equilibrium expectations, exhibited by two avian and two marine fish species with potentials for relatively long-distance dispersal; and (3) a progression from nonequilibrium distributions for younger lineages to equilibrium distributions for older lineages, a condition displayed by one surveyed avian species. These results demonstrate the advantages of considering mutation and genealogy in the interpretation of mtDNA geographic variation.

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The study on the modifying role of mitochondrial DNA polymorphism in the Brugada syndrome manifestation

Almanac of Clinical Medicine ◽

10.18786/2072-0505-2019-47-007 ◽

2019 ◽

Vol 47 (1) ◽

pp. 66-71

Author(s):

M. V. Golubenko ◽

V. S. Mikhaylov ◽

E. V. Zaklyazminskaya

Keyword(s):

Mitochondrial Dna ◽

Brugada Syndrome ◽

Phenotypic Variability ◽

Hereditary Disease ◽

Published Data ◽

Mitochondrial Dna Polymorphism ◽

Arrhythmogenic Effect ◽

D Loop ◽

Mtdna Polymorphism

Background: Brugada syndrome is a hereditary disease with genetic and phenotypic variability characterized by a high risk for arrhythmia and sudden cardiac death. It is assumed that modifying genetic factors contribute to the variability of the phenotype. Mitochondrial DNA (mtDNA) polymorphism can be considered among such factors, since mitochondrial dysfunction, including that associated with mtDNA variants, can have an arrhythmogenic effect. Aim: To study possible association between mtDNA polymorphism with the phenotype in the Russian patients with Brugada syndrome. Materials and methods: We have studied mtDNA polymorphism in 36 Russian probands with Brugada syndrome. Common “European” haplogroups of mtDNA were assigned using sequencing of the hypervariable segment 1 in mtDNA D-loop. Results: In the study sample, the frequencies of the mtDNA haplogroups generally correspond to the distribution common for the Russian populations, except the J haplogroup, which was not found in the studied probands. The results contradict with previously published data on the J and T haplogroups as risk factors for Brugada syndrome manifestation. Conclusion: The study did not reveal the role of mtDNA polymorphism (J and T haplogroups) in the formation of the Brugada syndrome phenotype.

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Genetic analysis of Y chromosome and mitochondrial DNA polymorphism of Mulam ethnic group in Guangxi, China

Hereditas (Beijing) ◽

10.3724/sp.j.1005.2013.00168 ◽

2013 ◽

Vol 35 (2) ◽

pp. 168-174 ◽

Cited By ~ 1

Author(s):

Xiao-Qing WANG ◽

Chuan-Chao WANG ◽

Qiong-Ying DENG ◽

Hui LI

Keyword(s):

Mitochondrial Dna ◽

Genetic Analysis ◽

Ethnic Group ◽

Y Chromosome ◽

Dna Polymorphism ◽

Mitochondrial Dna Polymorphism

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Mitochondrial DNA Variation in Peruvian Honey Bee (Apis mellifera L.) Populations Using the tRNAleu-cox2 Intergenic Region

Insects ◽

10.3390/insects12070641 ◽

2021 ◽

Vol 12 (7) ◽

pp. 641

Author(s):

Julio Chávez-Galarza ◽

Ruth López-Montañez ◽

Alejandra Jiménez ◽

Rubén Ferro-Mauricio ◽

Juan Oré ◽

...

Keyword(s):

Genetic Diversity ◽

Mitochondrial Dna ◽

Honey Bee ◽

Intergenic Region ◽

Current Status ◽

Dna Variation ◽

Africanized Honey Bee ◽

Dna Variations ◽

The 19Th Century ◽

Bee Colonies

Mitochondrial DNA variations of Peruvian honey bee populations were surveyed by using the tRNAleu-cox2 intergenic region. Only two studies have characterized these populations, indicating the presence of Africanized honey bee colonies in different regions of Peru and varied levels of Africanization, but the current status of its genetic diversity is unknown. A total of 512 honey bee colonies were sampled from three regions to characterize them. Our results revealed the presence of European and African haplotypes: the African haplotypes identified belong to sub-lineage AI (13) and sub-lineage AIII (03), and the European haplotypes to lineages C (06) and M (02). Of 24 haplotypes identified, 15 new sequences are reported here (11 sub-lineage AI, 2 sub-lineage AIII, and 2 lineage M). Peruvian honey bee populations presented a higher proportion from African than European haplotypes. High proportions of African haplotype were reported for Piura and Junín, unlike Lima, which showed more European haplotypes from lineage C. Few colonies belonging to lineage M would represent accidental purchase or traces of the introduction into Peru in the 19th century.

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