scholarly journals Wolbachia affects mitochondrial population structure in two systems of closely related Palaearctic blue butterflies

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alena Sucháčková Bartoňová ◽  
Martin Konvička ◽  
Jana Marešová ◽  
Martin Wiemers ◽  
Nikolai Ignatev ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Population Structure ◽  
Species Complex ◽  
Mitochondrial Gene ◽  
Mitochondrial Structure ◽  
Distribution Ranges ◽  
Mitochondrial Population ◽  
Two Systems ◽  
History Of ◽  
Mitochondrial Phylogeny

AbstractThe bacterium Wolbachia infects many insect species and spreads by diverse vertical and horizontal means. As co-inherited organisms, these bacteria often cause problems in mitochondrial phylogeny inference. The phylogenetic relationships of many closely related Palaearctic blue butterflies (Lepidoptera: Lycaenidae: Polyommatinae) are ambiguous. We considered the patterns of Wolbachia infection and mitochondrial diversity in two systems: Aricia agestis/Aricia artaxerxes and the Pseudophilotes baton species complex. We sampled butterflies across their distribution ranges and sequenced one butterfly mitochondrial gene and two Wolbachia genes. Both butterfly systems had uninfected and infected populations, and harboured several Wolbachia strains. Wolbachia was highly prevalent in A. artaxerxes and the host’s mitochondrial structure was shallow, in contrast to A. agestis. Similar bacterial alleles infected both Aricia species from nearby sites, pointing to a possible horizontal transfer. Mitochondrial history of the P. baton species complex mirrored its Wolbachia infection and not the taxonomical division. Pseudophilotes baton and P. vicrama formed a hybrid zone in Europe. Wolbachia could obscure mitochondrial history, but knowledge on the infection helps us to understand the observed patterns. Testing for Wolbachia should be routine in mitochondrial DNA studies.

scholarly journals Two partial mitochondrial gene sequences (COI and 12S-rRNA) suggested that Ceramaster japonicus (Sladen, 1889) and Ceramaster patagonicus (Sladen, 1889) (Asteroidea: Goniasteridae) from the Japanese waters are probably of the same species

Zoosymposia ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 129-140
Author(s):  
DAVIN H.E. SETIAMARGA ◽  
RENA SHIBA ◽  
YUKI KAMITO ◽  
MASAKI YAMAMOTO ◽  
NAZIFA NAZIHA BT. RAZALI ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Population Structure ◽  
Mitochondrial Gene ◽  
Haplotype Network ◽  
12S Rrna ◽  
National Museum ◽  
Network Analyses ◽  
Morphological Studies ◽  
The Pacific ◽  
Japanese Waters

Our recent morphological studies on the echinoderm collection of the National Museum of Nature and Science, Tokyo (NMST), indicated that the goniasterid starfishes Ceramaster japonicus (Sladen, 1889) and Ceramaster patagonicus (Sladen, 1889) are distributed in the Pacific Oceanside of Japan. In this study, we studied the NMST samples of C. japonicus and C. patagonicus from Japan, by using two mitochondrial DNA genes, the COI and 12S-rRNA, as markers to test relationships between these species in Japan. C. patagonicus sequences from GenBank were mined and included in the analyses. Results of phylogenetic and haplotype network analyses of both genes (final sequence lengths: COI = 317 bp, 12S = 477 bp) suggested that "Ceramaster patagonicus" and "Ceramaster japonicus" from Japanese waters are almost certainly synonymous without any population structure inside Japan.

scholarly journals Systematics of Large White-Headed Gulls: Patterns of Mitochondrial DNA Variation in Western European Taxa

The Auk ◽  
2002 ◽  
Vol 119 (3) ◽  
pp. 603-620 ◽  
Author(s):  
Pierre-André Crochet ◽  
Jean-Dominique Lebreton ◽  
François Bonhomme
Keyword(s):  
Mitochondrial Dna ◽  
Mitochondrial Gene ◽  
Evolutionary Relationships ◽  
Nuclear Markers ◽  
Large White ◽  
Mitochondrial Dna Control Region ◽  
Dna Variation ◽  
European Species ◽  
History Of ◽  
Western European

Abstract Although the large white-headed gull group (genus Larus) has long been a model in speciation studies, the systematic status and evolutionary relationships of many of its taxa remain unresolved. We used mitochondrial DNA control region and cytochrome-b gene sequences in an attempt to resolve some of those uncertainties. In contrast to previously published results based on nuclear markers, mitochondrial DNA was found to be strongly structured among species, indicating that mitochondrial gene flow is very low. Phylogenetic relationships remain largely unresolved, mainly because of the low amount of variation between species. Horizontal transfer of mitochondrial lineages is demonstrated or suspected between most taxa and obscured the reconstruction of the history of the group. The Mediterranean form michahellis was as differentiated from the other western European species as these are from each others, confirming it is neither conspecific with L. fuscus nor with L. argentatus. The forms fuscus and graellsii do not show any significant differences in haplotypes frequencies, arguing for their subspecific status.

scholarly journals Population structure and demographic history of Pacific herring Clupea pallasii around Japan inferred from mitochondrial DNA sequences

2017 ◽  
Vol 83 (2) ◽  
pp. 163-173 ◽  
Author(s):  
TOMONARI FUJITA ◽  
SHUICHI KITADA ◽  
YASUKO HARADA ◽  
YUKINO ISHIDA ◽  
SHOKO SANO ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Population Structure ◽  
Dna Sequences ◽  
Demographic History ◽  
Pacific Herring ◽  
Clupea Pallasii ◽  
History Of

scholarly journals The influence of demography, population structure and selection on molecular diversity in the selfing freshwater snail Biomphalaria pfeifferi

2003 ◽  
Vol 81 (3) ◽  
pp. 193-204 ◽  
Author(s):  
BERNARD ANGERS ◽  
NATHALIE CHARBONNEL ◽  
NICOLAS GALTIER ◽  
PHILIPPE JARNE
Keyword(s):  
Population Structure ◽  
Mitochondrial Gene ◽  
Random Mating ◽  
Natural Populations ◽  
Freshwater Snail ◽  
Biomphalaria Pfeifferi ◽  
African Populations ◽  
Size Population ◽  
History Of

Several forces may affect the distribution of genetic diversity in natural populations when compared to what is expected in a random-mating, constant size population of neutral genes. One solution for unravelling their respective influence is to study several genes at once in order to better reflect the true genealogy. Here we reconstruct the evolutionary history of the freshwater snail Biomphalaria pfeifferi over its entire distribution, using eight African populations, and three congeneric species as outgroups. A phylogenetic analysis was conducted using amplified fragment length polymorphism markers, and sequences at eight nuclear non-coding loci and one mitochondrial gene were used to analyse population structure. The geographic distribution of variation suggests greater affinities within than among regions. The pattern of variability at both the nuclear and mitochondrial DNA (mtDNA) loci is consistent with a bottleneck, although population structure may also partly explain our results. Our results are also indicative of the role of selection, whether positive or purifying, in the mtDNA. This highlights the fact that the interfering influences of population structure, demography and selection on molecular variation are not easily distinguished.

Molecular systematics of the Pardosa groenlandica species complex (Araneae: Lycosidae): large sample sizes fail to find monophyletic species

2015 ◽  
Vol 147 (6) ◽  
pp. 643-664
Author(s):  
Jozef Slowik ◽  
Derek S. Sikes
Keyword(s):  
Mitochondrial Dna ◽  
Dna Barcoding ◽  
Molecular Systematics ◽  
Species Complex ◽  
Mitochondrial Gene ◽  
Species Boundaries ◽  
Bayesian Analyses ◽  
Gene Coi ◽  
Competing Hypotheses ◽  
Phylogeographic Study

AbstractRelationships within the Pardosa groenlandica species complex (sensu Slowik and Sikes 2013) were analysed to test two competing hypotheses – the species complex consists of either four or seven species. We conducted a partitioned Bayesian analyses of the mitochondrial gene COI and the nuclear genes ITS1, 5.8S, and ITS2. These genes provided a dataset composed of 1874 nucleotides each from 144 specimens. Additional analyses included application of the DNA barcoding protocol and a phylogeographic study of a subset of specimens. Analyses found no support for either hypothesis and only one species was found monophyletic in a subset of analyses. Mitochondrial DNA yielded clades discordant with geography. Species in the P. groenlandica species complex show various amounts of genetic support, with a general lack of agreement between genetics and morphology for species boundaries.

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