Results 1 to 10 of about 2,753 (184)
The role of genetic polymorphisms in the sulfation of pregnenolone by human cytosolic sulfotransferase SULT2B1a [PDF]
Scientific ReportsPregnenolone is a key intermediate in the biosynthesis of many steroid hormones and neuroprotective steroids. Sulfotransferase family cytosolic 2B member 1 (SULT2B1a) has been reported to be highly selective to sulfate pregnenolone.
Eid Alatwi, Ahsan F. Bairam
doaj +2 more sources
Ameletus Mayflies (Ephemeroptera: Ameletidae) of the Eastern Nearctic [PDF]
InsectsFourteen Ameletus species are recognized in the eastern Nearctic (south of the Artic zone), including six described as new. Keys to adult males and full-grown larvae are provided. Taxonomic decisions were based on morphologic and genetic evidence.
David H. Funk
doaj +2 more sources
Allozymes and fitness: Evolution of a problem [PDF]
Trends in Ecology & Evolution, 1987 Uploaded by Plazi for TaxoDros. We do not have abstracts.
R A, Voelker +5 more
openaire +6 more sources
ALLOZYME DIVERGENCE WITHIN THE BOVIDAE [PDF]
Evolution, 1990 We describe a phylogeny of the Bovidae based on 40 allozyme loci in 27 species, representing 10 of the 14 bovid tribes described by Vrba (1985). Giraffe represented a related family (Giraffidae). A phenogram was derived using the unweighted pair-group method with arithmetic means (UPGMA), based on Nei's genetic distances (ND) between species.
Nicholas J, Georgiadis +3 more
openaire +2 more sources
GENETIC BACKGROUND AND THE FITNESS OF ALLOZYMES [PDF]
Genetics, 1974 ABSTRACT Experimental perturbations of gene frequency at the esterase-5 locus in Drosophila pseudoobscura were carried out in a series of population cages started with differing numbers of founder chromosomes. Cages founded with few chromosomes showed changes in gene frequency at the allozyme locus. Such changes were less marked in cages
J S, Jones, T, Yamazaki
openaire +2 more sources
REPLY TO “ALLOZYMES AND SONG DIALECTS: A REASSESSMENT” [PDF]
Evolution, 1984 Our research centers on birdsong dialects, which are culturally transmitted (learned) vocal traditions. We evaluate the influence dialects have on the population biology of the White-crowned Sparrow, Zonotrichia leucophrys. Zink and Barrowclough (1984), in this issue, criticized our recent study (Baker et al., 1982b). Our null hypothesis (Baker et al.,
Myron Charles, Baker +4 more
openaire +2 more sources
Genesis, Evolution, and Genetic Diversity of the Hexaploid, Narrow Endemic Centaurea tentudaica
Diversity, 2021 Within the genus Centaurea L., polyploidy is very common, and it is believed that, as to all angiosperms, it was key in the history of its diversification and evolution. Centaurea tentudaica is a hexaploid from subsect. Chamaecyanus of unknown origin. In
Lucía D. Moreyra +5 more
doaj +1 more source
Temporal isolation between two strongly differentiated stocks of the Greenland halibut ( Reinhardtius hippoglossoides Walbaum, 1792) from the Western Barents Sea [PDF]
Polish Polar Research, 2021 Identification of discrete stocks of Greenland halibut is an important aspect of proper fisheries exploitation. Available literature data indicated a lack of significant inter‑area differences between Greenland halibut populations from the Northeast ...
Barbara Wojtasik +4 more
doaj +1 more source
Phylogeny of beech in western Eurasia as inferred by approximate Bayesian computation
Acta Societatis Botanicorum Poloniae, 2018 The Fagus sylvatica L. species complex in Europe and Western Asia comprises two commonly recognized subspecies, F. sylvatica subsp. sylvatica [= F. sylvatica sensu stricto (s. str.)] and F. sylvatica subsp. orientalis (= F.
Dušan Gömöry +2 more
doaj +1 more source
Memorias do Instituto Oswaldo Cruz, 1999 DNA sequence comparison of 412 base-pairs fragments of the mitochondrial cytochrome B gene was used to infer the genetic structure of nine geographical Triatoma infestans populations and their phylogenetic relationship with T.
Fernando A Monteiro +8 more
doaj +1 more source