Results 21 to 30 of about 342,935 (312)

Molecular timetrees using relaxed clocks and uncertain phylogenies

open access: yesFrontiers in Bioinformatics, 2023
A common practice in molecular systematics is to infer phylogeny and then scale it to time by using a relaxed clock method and calibrations. This sequential analysis practice ignores the effect of phylogenetic uncertainty on divergence time estimates and
Jose Barba-Montoya   +5 more
doaj   +1 more source

A mitogenomic phylogeny of chitons (Mollusca: Polyplacophora)

open access: yesBMC Evolutionary Biology, 2020
Background Polyplacophora, or chitons, have long fascinated malacologists for their distinct and rather conserved morphology and lifestyle compared to other mollusk classes.
Iker Irisarri   +3 more
doaj   +1 more source

Crinoid phylogeny: a preliminary analysis (Echinodermata: Crinoidea) [PDF]

open access: yes, 2004
We describe the first molecular and morphological analysis of extant crinoid high-level inter-relationships. Nuclear and mitochondrial gene sequences and a cladistically coded matrix of 30 morphological characters are presented, and analysed by ...
Ameziane, N.   +3 more
core   +3 more sources

New insights into the phylogeny and relationships within the worldwide genus Riccardia (Aneuraceae, Marchantiophytina)

open access: yesEuropean Journal of Taxonomy, 2017
With 280 accepted species, the genus Riccardia S.F.Gray (Aneuraceae) is one of the most speciose genera of simple thalloid liverworts. The current classification of this genus is based on morphological and limited-sampling molecular studies.
Lucile Rabeau   +5 more
doaj   +1 more source

Time-calibrated molecular phylogeny of pteropods.

open access: yesPLoS ONE, 2017
Pteropods are a widespread group of holoplanktonic gastropod molluscs and are uniquely suitable for study of long-term evolutionary processes in the open ocean because they are the only living metazoan plankton with a good fossil record.
Alice K Burridge   +13 more
doaj   +1 more source

Phylogenetic review of the millipede genus Cherokia Chamberlin, 1949 (Polydesmida, Xystodesmidae) [PDF]

open access: yesZooKeys, 2022
The millipede genus Cherokia Chamberlin, 1949 is a monospecific taxon, with the type species Cherokia georgiana (Bollman, 1889). The last revision of the genus was made by Hoffman (1960) where he established three subspecies.
Luisa Fernanda Vasquez-Valverde   +1 more
doaj   +3 more sources

A molecular phylogeny of living primates.

open access: yesPLoS Genetics, 2011
Comparative genomic analyses of primates offer considerable potential to define and understand the processes that mold, shape, and transform the human genome.
Polina Perelman   +13 more
doaj   +1 more source

Molecular phylogeny and diversification history of Prosopis (Fabaceae: Mimosoideae) [PDF]

open access: yes, 2008
The genus Prosopis is an important member of arid and semiarid environments around the world. To study Prosopis diversification and evolution, a combined approach including molecular phylogeny, molecular dating, and character optimization analysis was ...
Alberdi   +81 more
core   +1 more source

Molecular phylogeny of the Notostraca [PDF]

open access: yesMolecular Phylogenetics and Evolution, 2013
We used a combined analysis of one nuclear (28S rDNA) and three mitochondrial markers (COI, 12S rDNA, 16S rDNA) to infer the molecular phylogeny of the Notostraca, represented by samples from the six continents that are inhabited by this group of branchiopod crustaceans.
Michael, Korn   +4 more
openaire   +2 more sources

Molecular Phylogeny of Acanthamoeba [PDF]

open access: yesThe Korean Journal of Parasitology, 2009
After morphological grouping of Acanthamoeba by Pussard and Pons, phylogeny of the genus has been always a big topic to the researchers. Because of the variability of morphological characteristics, unchangeable and stable characters have been investigated for phylogenic criteria.
openaire   +2 more sources

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