Results 31 to 40 of about 534,399 (300)

Population gene introgression and high genome plasticity for the zoonotic pathogen Streptococcus agalactiae [PDF]

open access: yes, 2019
The influence that bacterial adaptation (or niche partitioning) within species has on gene spillover and transmission among bacteria populations occupying different niches is not well understood.
Abbott   +124 more
core   +2 more sources

Antigenic and genetic evolution of contemporary swine H1 influenza viruses in the United States [PDF]

open access: yes, 2018
Several lineages of influenza A viruses (IAV) currently circulate in North American pigs. Genetic diversity is further increased by transmission of IAV between swine and humans and subsequent evolution.
Anderson, T K   +5 more
core   +2 more sources

Dissemination of Enterococcal Genetic Lineages: A One Health Perspective

open access: yesAntibiotics, 2023
Enterococcus spp. are commensals of the gastrointestinal tracts of humans and animals and colonize a variety of niches such as water, soil, and food. Over the last three decades, enterococci have evolved as opportunistic pathogens, being considered ESKAPE pathogens responsible for hospital-associated infections.
Joana Monteiro Marques   +4 more
openaire   +3 more sources

Common lizards break Dollo’s law of irreversibility: genome-wide phylogenomics support a single origin of viviparity and re-evolution of oviparity [PDF]

open access: yes, 2018
Dollo’s law of irreversibility states that once a complex trait has been lost in evolution, it cannot be regained. It is thought that complex epistatic interactions and developmental constraints impede the re-emergence of such a trait.
Elmer, Kathryn R.   +2 more
core   +1 more source

Neurospora from natural populations: Population genomics insights into the Life history of a model microbial Eukaryote [PDF]

open access: yes, 2020
The ascomycete filamentous fungus Neurospora crassa played a historic role in experimental biology and became a model system for genetic research. Stimulated by a systematic effort to collect wild strains initiated by Stanford geneticist David Perkins ...
A Menkis   +80 more
core   +2 more sources

Refining PRRSV-2 genetic classification based on global ORF5 sequences and investigation of their geographic distributions and temporal changes

open access: yesMicrobiology Spectrum, 2023
Porcine reproductive and respiratory syndrome virus (PRRSV) is an important swine pathogen affecting the global swine industry. The first open reading frame 5 (ORF5)-based genetic lineage classification system describing global PRRSV-2 genetic diversity ...
Wannarat Yim-im   +8 more
doaj   +1 more source

Genetic lineages and their traits in Neisseria meningitidis

open access: yesInternational Journal of Medical Microbiology, 2004
Neisseria meningitidis is a model organism for the study of bacterial population biology, for genome sequencing and pathogenicity research. In the recent years, our group has identified a variety of markers for hypervirulent lineages of meningococci, which in part could be validated for typing purposes.
Ulrich, Vogel   +2 more
openaire   +2 more sources

Canalization of the evolutionary trajectory of the human influenza virus [PDF]

open access: yes, 2011
Since its emergence in 1968, influenza A (H3N2) has evolved extensively in genotype and antigenic phenotype. Antigenic evolution occurs in the context of a two-dimensional 'antigenic map', while genetic evolution shows a characteristic ladder-like ...
A Kucharski   +43 more
core   +5 more sources

NTRASPECIES GENETIC AND MORPHOLOGICAL ANALYSES OF THE NEW COLLECTION OF MEDICINAL TINDER FOMES FOMENTARIUS(L.) FR.1849 (AGARICOMYCETES, POLYPORALES, POLYPORACEAE) FROM IRAQ

open access: yesBulletin of the Iraq Natural History Museum
Fomes fomentarius(L.) Fr., 1849 (Agaricomycetes, Polyporales, Polyporaceae) is a significant fungal species widely used in traditional medicine.
Rajaa Abdulrazzaq Al Anbagi   +2 more
doaj   +1 more source

Genetic diversity and population structure of Toona ciliata revealed by simple sequence repeat markers

open access: yesBiotechnology & Biotechnological Equipment, 2019
Toona ciliata (Meliaceae) is a rare, fast-growing commercial tree species that produces red timber with beautiful grains. It used to be widely distributed in the past, but few natural forests exist in the field now.
Xin Zhan   +8 more
doaj   +1 more source

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