Intraspecific Variation in Mitochondrial DNA of North American Cervids

1992 ◽  
Vol 73 (1) ◽  
pp. 70-82 ◽  
Author(s):  
M. A. Cronin
Keyword(s):  
Mitochondrial Dna ◽  
Intraspecific Variation ◽  
North American

Mitochondrial DNA-Based Phylogeography of North American Rubber Boas, Charina bottae (Serpentes: Boidae)

2001 ◽  
Vol 18 (2) ◽  
pp. 227-237 ◽  
Author(s):  
Javier A Rodrı́guez-Robles ◽  
Glenn R Stewart ◽  
Theodore J Papenfuss
Keyword(s):  
Mitochondrial Dna ◽  
North American

A Taxonomic Revision of the Genus Megetra (Coleoptera: Meloidae) with Ecological and Behavioral Notes

1965 ◽  
Vol 97 (6) ◽  
pp. 561-580 ◽  
Author(s):  
Richard B. Selander
Keyword(s):  
New Species ◽  
New Mexico ◽  
Intraspecific Variation ◽  
North American ◽  
Taxonomic Revision ◽  
Seasonal Distribution ◽  
The State ◽  
Northern Arizona ◽  
The North ◽  
And Behavior

Abstract>Three species are recognized in the North American genus Megetra LeConte. The most distinctive of these anatomically and ecologically is M. cancellata (Brandt and Erichson), which ranges discontinuously from Arizona and New Mexico to the state of Hidalgo in México and occurs in limited sympatry with both of its congeners. Megetra vittata (LeConte) ranges from northern Arizona to western Texas. It appears to be strictly allopatric with, and similar ecologically to, M. punctata, new species, which ranges from southern Arizona and New Mexico to Durango, México. Specific diagnoses are made on the basis of characters of adult and, for M. cancellata and M. punctata, larval anatomy. Intraspecific variation in several adult characters is analyzed. Notes on the seasonal distribution, habitat, and behavior of the adult beetles are included.

scholarly journals Geographically Based Diversity in Mitochondrial DNA of North American Lygus lineolaris (Hemiptera: Miridae)

2012 ◽  
Vol 105 (6) ◽  
pp. 917-929 ◽  
Author(s):  
Prasad S. Burange ◽  
Richard L. Roehrdanz ◽  
Mark A. Boetel
Keyword(s):  
Mitochondrial Dna ◽  
North American ◽  
Lygus Lineolaris

Molecular variability of Schistonchus caprifici (Nematoda: Aphelenchoididae) from Ficus carica in Turkey

Nematology ◽  
2008 ◽  
Vol 10 (5) ◽  
pp. 639-649 ◽  
Author(s):  
Baris Gulcu ◽  
Selçuk Hazir ◽  
Robin M. Giblin-Davis ◽  
Weimin Ye ◽  
Natsumi Kanzaki ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Intraspecific Variation ◽  
Human Activities ◽  
Large Subunit ◽  
Ficus Carica ◽  
Lsu Rdna ◽  
Molecular Analyses ◽  
Molecular Variability ◽  
Geographic Patterns ◽  
Fig Trees

Abstract An extensive biogeographical survey was conducted from 2004 through part of 2007 of nematodes associated with the edible fig, Ficus carica, in seven different regions of Turkey. Figs (syconia) were collected, dissected and harvested for nematodes from 308 apparently wild or naturalised F. carica trees along roadsides and trails. Nematode specimens were examined morphologically and molecular analyses of sequences of the D2/D3 expansion segments of the large subunit (LSU) rDNA and partial mitochondrial DNA COI (mtCOI) were done. Of the 308 fig trees, 150 (49%) were positive for what was morphologically confirmed to be Schistonchus caprifici. Figs on one tree in Kahramanmaras city, South East Turkey, were found to contain S. caprifici and dauer juveniles of what appears to be a diplogastrid nematode. Molecular analyses produced congruent trees for both sequenced loci supporting the hypothesis that S. caprifici from different locations in Turkey are part of a well supported clade with some inherent variability. No geographic patterns were observed for either locus suggesting that the sequences generated represent inherent intraspecific variation for S. caprifici and that human activities related to the culture of the edible fig have allowed for mixing of any previously allopatric lineages.

scholarly journals Remarkable morphological variation in the proboscis of Neorhadinorhynchus nudus (Harada, 1938) (Acanthocephala: Echinorhynchida)

Parasitology ◽  
2018 ◽  
Vol 146 (3) ◽  
pp. 348-355 ◽  
Author(s):  
Liang Li ◽  
Matthew Thomas Wayland ◽  
Hui-Xia Chen ◽  
Yue Yang
Keyword(s):  
Mitochondrial Dna ◽  
Molecular Markers ◽  
South China Sea ◽  
Intraspecific Variation ◽  
Dna Sequences ◽  
Intestinal Wall ◽  
Congeneric Species ◽  
Genetic Lineages ◽  
Nucleotide Divergence ◽  
Auxis Thazard

AbstractThe acanthocephalans are characterized by a retractible proboscis, armed with rows of recurved hooks, which serves as the primary organ for attachment of the adult worm to the intestinal wall of the vertebrate definitive host. Whilst there is a considerable variation in the size, shape and armature of the proboscis across the phylum, intraspecific variation is generally regarded to be minimal. Consequently, subtle differences in proboscis morphology are often used to delimit congeneric species. In this study, striking variability in proboscis morphology was observed among individuals of Neorhadinorhynchus nudus (Harada, 1938) collected from the frigate tuna Auxis thazard Lacépède (Perciformes: Scombridae) in the South China Sea. Based on the length of the proboscis, and number of hooks per longitudinal row, these specimens of N. nudus were readily grouped into three distinct morphotypes, which might be considered separate taxa under the morphospecies concept. However, analysis of nuclear and mitochondrial DNA sequences revealed a level of nucleotide divergence typical of an intraspecific comparison. Moreover, the three morphotypes do not represent three separate genetic lineages. The surprising, and previously undocumented level of intraspecific variation in proboscis morphology found in the present study, underscores the need to use molecular markers for delimiting acanthocephalan species.

Phylogeography and mitochondrial DNA (mtDNA) diversity in North American collared lemmings (Dicrostonyx groenlandicus)

2000 ◽  
Vol 9 (3) ◽  
pp. 329-337 ◽  
Author(s):  
D. Ehrich ◽  
V. B. Fedorov ◽  
N. C. Stenseth ◽  
C. J. Krebs ◽  
A. Kenney
Keyword(s):  
Mitochondrial Dna ◽  
North American ◽  
Dicrostonyx Groenlandicus ◽  
Mtdna Diversity

scholarly journals Intraspecific Variation in a Scorpionfly Newly Recorded from Texas and the State of Taxonomy of North American Panorpidae (Mecoptera)

2010 ◽  
Vol 2010 ◽  
pp. 1-5
Author(s):  
Joshua R. Jones
Keyword(s):  
North America ◽  
Intraspecific Variation ◽  
North American ◽  
Original Description ◽  
The State ◽  
Taxonomic Review ◽  
Intraspecific Variations ◽  
First Time

Panorpa vernalisByers is recorded for the first time from Texas, and represents only the second species ofPanorpadocumented from the state. Intraspecific variations between the Texas specimens and Byers' original description are discussed. A synopsis of the principal modern keys for identification of North AmericanPanorpais provided, and an argument for a modern taxonomic review of the Panorpidae of North America is presented.

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