Results 31 to 40 of about 2,982 (220)

Complete mitogenomes of two Psittacula species, P. derbiana and P. eupatria

open access: yesMitochondrial DNA. Part B. Resources, 2019
In this paper, we first reported the complete mitogenomes of Psittacula derbiana and Psittacula eupatria. Respectively, P. derbiana and P. eupatria mitogenomes are 16,887 and 17,139 bp base pairs long.
Hongyi Liu   +4 more
doaj   +1 more source

A phylogeny of birds based on over 1,500 loci collected by target enrichment and high-throughput sequencing [PDF]

open access: yes, 2012
Evolutionary relationships among birds in Neoaves, the clade comprising the vast majority of avian diversity, have vexed systematists due to the ancient, rapid radiation of numerous lineages.
Brumfield, Robb T.   +5 more
core   +5 more sources

Identification of novel cryptosporidium genotypes from the Czech Republic [PDF]

open access: yes, 2003
Isolates of Cryptosporidium from the Czech Republic were characterized from a variety of different hosts using sequence and phylogenetic analysis of the 18S ribosomal DNA and the heat-shock (HSP-70) gene.
Ryan, U.   +5 more
core   +2 more sources

Molecular characterization of Cryptosporidium isolates obtained from human immunodeficiency virus-infected individuals living in Switzerland, Kenya, and the United States. [PDF]

open access: yes, 2000
A total of 22 Cryptosporidium isolates from human immunodeficiency virus-infected patients from Kenya, Switzerland, and the United States were examined at three genetic loci: the 18S ribosomal DNA, HSP-70, and acetyl coenzyme A synthetase genes.
Morgan, U.M.   +8 more
core   +2 more sources

Psittaboydaia (Psittaboydaia) psittaculae

open access: yes, 2018
Published as part of Skoracki, Maciej, Schmidt, Karl-Heinz, Marciniak, Natalia & Marciniak, Martyna, 2018, A review of mites of the subfamily Speleognathinae (Acariformes: Ereynetidae) parasitizing respiratory tracts of birds in the Afrotropical region, pp.
Skoracki, Maciej   +3 more
openaire   +1 more source

Sequence and phylogenetic analysis of the mitochondrial genome for red-breasted parakeet Psittacula alexandri (Psittaciformes: Psittacidae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
In this study, we first sequenced and described the complete mitochondrial genome and phylogeny of Psittacula alexandri. The whole genome of P. alexandri was 16,883 bp in length, and contained 14 protein-coding genes, 22 transfer RNA genes, 2 ribosome ...
Yuan Li, Yubao Duan
doaj   +1 more source

Enthymemes: From reconstruction to understanding [PDF]

open access: yes, 2011
Traditionally, an enthymeme is an incomplete argument, made so by the absence of one or more of its constituent statements. An enthymeme resolution strategy is a set of procedures for finding those missing elements, thus reconstructing the enthymemes and
Paglieri, Fabio, Woods, John
core   +1 more source

Detecção molecular de Sarcocystis spp. no músculo peitoral de aves de cativeiro da região sul do Brasil

open access: yesSemina: Ciências Agrárias, 2023
Estudos sobre doenças de aves silvestres são essenciais no contexto da saúde pública, pois esses animais atuam como sentinelas, permitindo obter informações sobre uma determinada área geográfica. Além disso, as aves são fontes de proteína alimentar para
Marta Elena Machado Alves   +5 more
doaj   +1 more source

Micro-evolutionary diversification among Indian Ocean parrots: temporal and spatial changes in phylogenetic diversity as a consequence of extinction and invasion [PDF]

open access: yes, 2015
Almost 90% of global bird extinctions have occurred on islands. The loss of endemic spe- cies from island systems can dramatically alter evolutionary trajectories of insular species biodiversity, resulting in a loss of evolutionary diversity important ...
Ahmad S.   +11 more
core   +1 more source

Fatal dual infection of avian polyomavirus and psittacine beak and feather disease virus in Chile

open access: yesAustral Journal of Veterinary Sciences, 2017
A 6 week old Plum-headed parakeet (Psittacula cyanocephala) from a private bird collection in the Metropolitan Region of Chile died after presenting depression, ataxia, tremors of the head, subcutaneous hemorrhage and delayed crop emptying.
Gisela A. González-Hein   +2 more
doaj   +1 more source

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