Results 61 to 70 of about 230,793 (360)
An overview on the phylogenetic classification of Brucella
Revista U.D.C.A Actualidad & Divulgación Científica, 2018 The genus Brucella is a globally distributed intracellular pathogen that affects animals and humans and presents low genetic variability, which is a challenge for its phylogenetic reconstruction.
Juana Vidal, Luisa Ortiz, Martha Olivera
doaj +1 more source
Evolutionary drivers, morphological evolution and diversity dynamics of a surviving mammal clade: cainotherioids at the Eocene--Oligocene transition [PDF]
Proceedings of the Royal Society B: Biological Sciences, Royal
Society, The, 2021, 288 (1952), pp.20210173.
\&\#x27E8;10.1098/rspb.2021.0173\&\#x27E9, 2021 The Eocene--Oligocene transition (EOT) represents a period of global environmental changes particularly marked in Europe and coincides with a dramatic biotic turnover. Here, using an exceptional fossil preservation, we document and analyse the diversity dynamics of a mammal clade, Cainotherioidea (Artiodactyla), that survived the EOT and radiated ...
arxiv
A computed tomography‐based survey of paramedullary diverticula in extant Aves
The Anatomical Record, Volume 306, Issue 1, Page 29-50, January 2023., 2023 Abstract Avian respiratory systems are comprised of rigid lungs connected to a hierarchically organized network of large, regional air sacs, and small diverticula that branch from them. Paramedullary diverticula are those that rest in contact with the spinal cord, and frequently invade the vertebral canal.
Jessie Atterholt, Mathew J. Wedel
wiley +1 more source
New Phytologist, 2018 Contents Summary 669 I. Model clades for the study and integration of ecology and evolution 670 II. Oaks: an important model clade 671 III. Insights from the history of the American oaks for understanding community assembly and ecosystem dominance 673 IV.
J. Cavender-Bares
semanticscholar +1 more source
The Anatomical Record, Volume 306, Issue 1, Page 5-28, January 2023., 2023 Abstract Antlers are the most conspicuous trait of cervids and have been used in the past to establish a classification of their fossil and living representatives. Since the availability of molecular data, morphological characters have generally become less important for phylogenetic reconstructions.
Nicola S. Heckeberg +2 more
wiley +1 more source
Frontiers in Microbiology, 2020 Prochlorococcus and Synechococcus are pico-sized cyanobacteria that play a fundamental role in oceanic primary production, being particularly important in warm, nutrient-poor waters.
Alexandra Coello-Camba +8 more
doaj +1 more source
The Anatomical Record, EarlyView., 2022 Abstract A number of helochelydrid turtle shell remains were recovered over the course of the 19th century from mid‐Cretaceous sediments throughout Southern England, including the poorly figured and described types of Trachydermochelys phlyctaenus from the Cambridge Greensand of Cambridgeshire, Plastremys lata from the Upper Greensand of the Isle of ...
Walter G. Joyce
wiley +1 more source
Genetic Recombination Events Between Sympatric Clade A and Clade C Lice in Africa [PDF]
Journal of Medical Entomology, 2013 Human head and body lice have been classified into three phylogenetic clades (Clades A, B, and C) based on mitochondrial DNA. Based on nuclear markers (the 18S rRNA gene and the PM2 spacer), two genotypes of Clade A head and body lice, including one that is specifically African (Clade A2), have been described. In this study, we sequenced the PM2 spacer
Amina Boutellis +2 more
openaire +3 more sources
The Anatomical Record, EarlyView., 2023 Abstract Based on histological cross‐sections, the chondrocranium of the common musk turtle (Sternotherus odoratus) was reconstructed, described, and compared with other turtles. It differs from that of other turtle chondrocrania by possessing elongated, slightly dorsally orientated nasal capsules with three dorsolateral foramina, which might be ...
Luca Leicht +2 more
wiley +1 more source
Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones
FEBS Letters, EarlyView.Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley +1 more source