Results 21 to 30 of about 21,943 (258)

A tale that morphology fails to tell: a molecular phylogeny of Aeolidiidae (Aeolidida, Nudibranchia, Gastropoda).

open access: yesPLoS ONE, 2013
Aeolidida is one of the largest clades of nudibranchs with at least 560 known species. However, its systematics has not been studied in a comprehensive manner.
Leila Carmona   +3 more
doaj   +1 more source

LIFE GIVEN FOR THE SCIENCE (ABOUT EKATERINA VLADIMIROVNA ELLADY)

open access: yesТруды по прикладной ботанике, генетике и селекции, 2018
The article describes the way of life of N. I. Vavilov’s colleague Ekaterina Vladimirovna Ellady and her contribution to botanical systematics, geographical and phylogenetic study of worldwide diversity of cultivated and wild flax held in the collection ...
S. N. Kutuzova
doaj   +1 more source

Spatial Pattern Analysis and Conservation Assessment of Apiaceae in Mongolia

open access: yesPlants
The family Apiaceae, distributed throughout the Northern Hemisphere, is the largest family of angiosperms. However, little is known about the conservation status, diversity, and distribution of Apiaceae species in Mongolia. This study had two main aims: (
Magsar Urgamal   +8 more
doaj   +1 more source

Whole genome molecular phylogeny of large dsDNA viruses using composition vector method

open access: yesBMC Evolutionary Biology, 2007
Background One important mechanism by which large DNA viruses increase their genome size is the addition of modules acquired from other viruses, host genomes or gene duplications. Phylogenetic analysis of large DNA viruses, especially using methods based
Gao Lei, Qi Ji
doaj   +1 more source

Phenetic and cladistic analyses of Boraginaceae Juss.

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2023
Background The systematics of family Boraginaceae draw attention of many botanists for many years. The current study's primary goals are to clarify phenetic and phylogenetic relationships within Boraginaceae according to morphology and molecular ...
Usama K. Abdel-Hameed   +4 more
doaj   +1 more source

Genome-Based Taxonomic Classification of the Phylum Actinobacteria

open access: yesFrontiers in Microbiology, 2018
The application of phylogenetic taxonomic procedures led to improvements in the classification of bacteria assigned to the phylum Actinobacteria but even so there remains a need to further clarify relationships within a taxon that encompasses organisms ...
Imen Nouioui   +9 more
doaj   +1 more source

Revisiting the Genetic, Taxonomic and Evolutionary Aspects of Chagas Disease Vectors of the Triatoma phyllosoma Subcomplex (Hemiptera, Triatominae)

open access: yesDiversity, 2022
Triatoma bassolsae, T. longipennis, T. mazzottii, T. pallidipennis, T. phyllosoma and T. picturata are species that have great epidemiological importance in the transmission of Chagas disease in Mexico.
Natália Regina Cesaretto   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy

open access: yesNeotropical Ichthyology
The family Characidae is the most diverse among Neotropical fishes. Systematics of this family are mainly based on pre-cladistic papers, and only recently a phylogenetic hypothesis for Characidae was proposed by the author.
Juan Marcos Mirande
doaj   +1 more source

Phylogenetic relationships of a new species of Apostolepis from Brazilian Cerrado with notes on the assimilis group (Serpentes: Colubridae: Xenodontinae: Elapomorphini)

open access: yesPapéis Avulsos de Zoologia, 2005
The assimilis species group is one of the several assemblages that can be distinguished within the genus Apostolepis. The group is characterized by a uniform red dorsal pattern, broad nucho-cervical collars, enlarged light snout blotch, dark ventral head,
Hebert Ferrarezzi   +2 more
doaj   +1 more source

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