Results 41 to 50 of about 5,259 (193)

Phylogenomics and classification of Notropis and related shiners (Cypriniformes: Leuciscidae) and the utility of exon capture on lower taxonomic groups [PDF]

open access: yesPeerJ, 2022
North American minnows of the Shiner Clade, within the family Leuciscidae, represent one of the most taxonomically complex clades of the order Cypriniformes due to the large number of taxa coupled with conserved morphologies.
Carla Stout   +4 more
doaj   +2 more sources

Co-evolution of male and female reproductive traits across the Bruchidae (Coleoptera) [PDF]

open access: yes, 2008
1. Despite the obvious importance of spermatozoa to individual reproductive success a general explanation of variation in spermatozoan form and function is still lacking. In species with internal fertilization, sperm not only have to interact with the
Andrés   +57 more
core   +1 more source

A Reappraisal of Phylogentic Relationships in the Monocotyledon Family Hydrocharitaceae (Alismatidae)

open access: yesAliso, 2006
The diverse, aquatic Hydrocharitaceae have defied stable classification for nearly two centuries. Anatomical and morphological convergence characterize many aquatic plants and undoubtedly have hindered the ability of researchers to ascertain accurately those features representing reliable phylogenetic markers within Hydrocharitaceae.
Donald Les, Michael Moody, Connie Soros
openaire   +2 more sources

Snoqualmia, a new polydesmid milliped genus from the northwestern United States, with a description of two new species (Diplopoda, Polydesmida, Polydesmidae) [PDF]

open access: yes, 2012
Snoqualmia, new genus, is described for two species of polydesmid millipeds from the northwestern United States: Snoqualmia snoqualmie, new species, from Washington State, and S. idaho, new species, from Idaho. Males of S.
Shear, William A.
core   +2 more sources

Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters [PDF]

open access: yes, 2010
The diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations in these groups, we employed molecular data (nuclear ITS and mitochondrial ...
Brunauer, Georg   +4 more
core   +4 more sources

The complete mitochondrial genome of Protobothrops kaulbacki (Squamata: Viperidae)

open access: yesMitochondrial DNA. Part B. Resources, 2017
Protobothrops kaulbacki is a new record in China, and in this study, the complete mitochondrial genome sequence of P. kaulbacki had been determined. The length of mitogenome is 17,237 bp, including 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes ...
Xing Kang   +9 more
doaj   +1 more source

The oldest Brazilian snakes from the cenomanian (Early Late Cretaceous) [PDF]

open access: yes, 2014
South American Mesozoic snake diversity is mostly represented by genera from the Cenomanian (Najash), Santonian- Campanian (Dinilysia), and Campanian-Maastrichtian (Alamitophis, Patagoniophis, Rionegrophis, and Australophis) of Patagonia, Argentina.
Albino, Adriana Maria   +3 more
core   +1 more source

Phylogentic analysis of recent infectious bronchitis virus isolates from broiler chicken farms in Kafrelsheikh, Egypt [PDF]

open access: yesBenha Veterinary Medical Journal, 2015
Infectious bronchitis (IB), caused by the IB virus (IBV), is a highly contagious disease and results in asignificant economic loss to the commercial chicken industry all over the world. The emergence of newvariants constitutes a major problem of avian infectious bronchitis virus (IBV).
Samy Kasem   +3 more
openaire   +1 more source

New Method of Measuring TCP Performance of IP Network using Bio-computing

open access: yes, 2012
The measurement of performance of Internet Protocol IP network can be done by Transmission Control Protocol TCP because it guarantees send data from one end of the connection actually gets to the other end and in the same order it was send, otherwise an ...
Abdul-Rahman, Suha Adham   +1 more
core   +2 more sources

Cellulosomics, a gene-centric approach to investigating the intraspecific diversity and adaptation of Ruminococcus flavefaciens within the rumen [PDF]

open access: yes, 2011
Peer reviewedPublisher ...
Bayer, Edward A   +13 more
core   +4 more sources

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