نتایج جستجو برای: coi gene

تعداد نتایج: 1143602  

Journal: :Bulletin of entomological research 2001
T L Clark L J Meinke J E Foster

Adult and larval identification of Diabrotica can be difficult. Some adult identifications require considerable taxonomic experience while larvae of many Diabrotica species are morphologically indistinguishable. This study was conducted to determine whether 12 pest and non-pest Diabrotica species could be separated using polymerase chain reaction-restriction fragment length polymorphism (PCR-RF...

Journal: :Taxonomy 2021

Conspecificity of the morphologically-similar, sympatric nudibranch species Dendrodoris gunnamatta (Allen, 1932) and krusensternii (Gray, 1850) was tested using sequences mitochondrial COI gene. Data analysis supports presence phenotypic polymorphy in D. where specimens from large estuaries embayments central New South Wales, Australia either lack or have highly reduced sky-blue ocellae.

2015
Ching-Yuan Lai Mei-Chun Chou Cheng-Li Lin Chia-Hung Kao Thomas Mueller.

The present study evaluated the association of carbon monoxide intoxication (COI) with Parkinson disease (PD).A total of 9012 adults newly diagnosed with COI were enrolled in this study as the COI cohort. The control (non-COI) cohort, comprising 36,048 participants, was matched for each COI patient according to age, sex, and the year of hospitalization. We calculated the hazard ratios (HR) and ...

2005
Rowan D.H. Barrett D. N. Hebert

With almost 40 000 species, the spiders provide important model systems for studies of sociality, mating systems, and sexual dimorphism. However, work on this group is regularly constrained by difficulties in species identification. DNA-based identification systems represent a promising approach to resolve this taxonomic impediment, but their efficacy has only been tested in a few groups. In th...

Journal: :Journal of the Marine Biological Association of the United Kingdom 2021

Abstract We establish a new genus of planocerid polyclad, Heteroplanocera gen. nov., based on species, H. katoi sp. collected at depth 245 m off the coast Izu Peninsula, West Pacific, Japan. nov. is distinguished from other genera by following characteristics: (i) pair nuchal tentacles, (ii) muscular bulb, (iii) spermiducal bulbs (instead seminal vesicle), (iv) free prostatic vesicle, (v) acces...

Journal: :American journal of respiratory and critical care medicine 2009
Holger J Schünemann Molly Osborne Joel Moss Constantine Manthous Gregory Wagner Leonard Sicilian Jill Ohar Shane McDermott Lance Lucas Roman Jaeschke

BACKGROUND Competing interests occur frequently in health care. This results in the potential for conflict of interest (COI). COI can lead to biased generation or assessment of evidence and misinform healthcare decision makers. Declaration of COI is insufficient to neutralize potentially harmful effects. Medical professional societies are obliged to develop robust mechanisms to "manage" COI, pa...

2015
J. Wang Y. Yu L.-L. Li D. Guo Y.-L. Tao D. Chu

The genetic differentiation and genetic structure of the peach fruit moth, Carposina sasakii Matsumura (Lepidoptera: Carposinidae), was investigated in China, where the moth is native. The mitochondrial cytochrome c oxidase I (COI) gene of 180 individuals from 16 collections were sequenced and analyzed. The results showed that two sympatric and cryptic mtDNA lineages existed within C. sasakii i...

2016
P. Zanolli M. Martini L. Mazzon F. Pavan

Morphological identification and molecular study on the COI gene were simultaneously conducted on Anagrus Haliday 'atomus' group individuals collected in the field in Italy or supplied from a UK biofactory. Females were morphologically identified as A. atomus L. and A. parvus Soyka sensu Viggiani (=A. ustulatus sensu Chiappini). Alignment of COI gene sequences from this study permitted recognit...

2002
MARTHA R.B. SMITH-CALDAS BRUCE A. MCPHERON JANISETE G. SILVA ROBERTO A. ZUCCHI

A fragment of 808 base pairs within the mtDNA gene cytochrome oxidase I (COI) was analyzed for 15 species of Anastrepha: 12 within the fraterculus group, one unplaced species and two outgroups. Phylogenetic relationships among the included taxa were inferred using neighbor-joining and maximum parsimony methods. The average Jukes-Cantor genetic distance among the species was 0.033±0.006 and the ...

2006
Kevin A. Shufran Vidhya Rangaswamy John D. Burd David R. Porter

Single strand conformation polymorphism (SSCP) analysis discriminated three mtDNA haplotypes in the greenbug, Schizaphis graminum (Rondani) (Homoptera: Aphididae), previously identified by sequencing a 1.0–1.2 kb portion of the cytochrome oxidase subunit I (COI) gene. Neighborjoining, maximum parsimony, and maximum likelihood analysis of a 150 b portion of the original 1.2 kb fragment of the CO...

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