Results 31 to 40 of about 66,141 (268)

Estimating Divergence Times and Substitution Rates in Rhizobia [PDF]

open access: yesEvolutionary Bioinformatics, 2016
Accurate estimation of divergence times of soil bacteria that form nitrogen-fixing associations with most leguminous plants is challenging because of a limited fossil record and complexities associated with molecular clocks and phylogenetic diversity of root nodule bacteria, collectively called rhizobia.
Rim Chriki-Adeeb, Ali Chriki
openaire   +4 more sources

Plastome structure, phylogenomics, and divergence times of tribe Cinnamomeae (Lauraceae)

open access: yesBMC Genomics, 2022
Background Tribe Cinnamomeae is a species-rich and ecologically important group in tropical and subtropical forests. Previous studies explored its phylogenetic relationships and historical biogeography using limited loci, which might result in biased ...
Tian-Wen Xiao, Xue-Jun Ge
doaj   +1 more source

Estimating divergence times in large molecular phylogenies [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
Molecular dating of species divergences has become an important means to add a temporal dimension to the Tree of Life. Increasingly larger datasets encompassing greater taxonomic diversity are becoming available to generate molecular timetrees by using sophisticated methods that model rate variation among lineages. However, the practical application of
Koichiro, Tamura   +5 more
openaire   +2 more sources

Phylogeny and Evolutionary Timescale of Muscidae (Diptera: Calyptratae) Inferred from Mitochondrial Genomes

open access: yesInsects, 2023
House flies (Muscidae) comprise the most species-rich family of the muscoid grade with over 5000 described species worldwide, and they are abundant in various terrestrial and aquatic ecosystems.
Xin Li   +7 more
doaj   +1 more source

Estimation of divergence measures via weighted Jensen inequality on time scales

open access: yesJournal of Inequalities and Applications, 2021
The main purpose of the presented paper is to obtain some time scale inequalities for different divergences and distances by using weighted time scales Jensen’s inequality.
Iqrar Ansari   +4 more
doaj   +1 more source

Estimating metazoan divergence times with a molecular clock [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
Accurately dating when the first bilaterally symmetrical animals arose is crucial to our understanding of early animal evolution. The earliest unequivocally bilaterian fossils are ≈555 million years old. In contrast, molecular-clock analyses calibrated by using the fossil record of vertebrates estimate that vertebrates split from dipterans
Kevin J, Peterson   +5 more
openaire   +2 more sources

Pueraria montana Population Structure and Genetic Diversity Based on Chloroplast Genome Data

open access: yesPlants, 2023
Despite having a generally conserved structure, chloroplast genome data have been helpful for plant population genetics and evolution research. To mine Pueraria montana chloroplast genome variation architecture and phylogeny, we investigated the ...
Jiahui Sun   +7 more
doaj   +1 more source

Phylogenomics Resolves the Phylogeny of Theaceae by Using Low-Copy and Multi-Copy Nuclear Gene Makers and Uncovers a Fast Radiation Event Contributing to Tea Plants Diversity

open access: yesBiology, 2022
Tea is one of the three most popular nonalcoholic beverages globally and has extremely high economic and cultural value. Currently, the classification, taxonomy, and evolutionary history of the tea family are largely elusive, including phylogeny ...
Lin Cheng   +6 more
doaj   +1 more source

Between the Cape Fold Mountains and the deep blue sea: Comparative phylogeography of selected codistributed ectotherms reveals asynchronous cladogenesis

open access: yesEvolutionary Applications, 2022
We compare the phylogeographic structure of 13 codistributed ectotherms including four reptiles (a snake, a legless skink and two tortoise species) and nine invertebrates (six freshwater crabs and three velvet worm species) to test the presence of ...
Angus Macgregor Myburgh   +1 more
doaj   +1 more source

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