Results 151 to 160 of about 64,688 (330)

Acclimation conditions and subsequent acute hypoxia challenges do not affect the frequency of erythrocyte nuclear segmentation in triploid brook charr Salvelinus fontinalis (Mitchill 1814)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Routine observations of blood smears have repeatedly shown that triploid fish have a greater proportion of erythrocytes with nuclear segmentation (ENS) than diploids; however, there is as yet no understanding of why this is the case and whether it affects erythrocyte function.
John D. Clark   +4 more
wiley   +1 more source

Effect of heterozygosity, ploidy and incubation temperature on post‐cranial axial skeletal meristics and deformities in Atlantic salmon (Salmo salar)

open access: yesJournal of Fish Biology, EarlyView.
Abstract The teleostean post‐cranial axial skeleton is a highly specialized structure for an aquatic mode of life. However, there is limited knowledge regarding parental contributions, early‐life environmental impacts on its meristic variation and if reduced heterozygosity challenges its development.
Murugesan Sankar   +5 more
wiley   +1 more source

High‐quality genome of allotetraploid Avena barbata provides insights into the origin and evolution of B subgenome in Avena

open access: yesJournal of Integrative Plant Biology, EarlyView.
A high‐quality genome sequence of the tetraploid wild oat Avena barbata provides crucial genetic information for the Avena B‐genome, allowing clarification of the evolutionary trajectories of the four subgenomes within Avena and identification of numerous key genes related to environmental adaptability, thus offering valuable resources for oat breeding
Qiang He   +9 more
wiley   +1 more source

Guide to k-mer approaches for genomics across the tree of life [PDF]

open access: yesarXiv
The wide array of currently available genomes display a wonderful diversity in size, composition and structure with many more to come thanks to several global biodiversity genomics initiatives starting in recent years. However, sequencing of genomes, even with all the recent advances, can still be challenging for both technical (e.g.
arxiv  

Effects of deoxycorticosterone-salt hypertension on cell ploidy in the rat aorta. [PDF]

open access: bronze, 1986
Alice H. Lichtenstein   +2 more
openalex   +1 more source

A comparison of calcification mechanisms in haploid and diploid cells of the coccolithophore Calcidiscus leptoporus (Murray & Blackman 1898)

open access: yesJournal of Phycology, EarlyView.
Abstract Coccolithophores are prominent marine pelagic calcifiers due to their production of calcite coccoliths. Diploid coccolithophores produce heterococcoliths intracellularly, with an organic cellulose baseplate scale acting as a nucleating substrate. However, coccolith production in the haploid life phase has not been extensively studied.
Erin M. Meyer, Alison R. Taylor
wiley   +1 more source

Phylogenetics and reticulation among koelerioid clades, part I: Contraction of Trisetum, expansion of Acrospelion, Graphephorum, and Tzveleviochloa; Graciliotrisetum gen. nov. and resurrection of Aegialina (Poaceae, Pooideae, Poeae, Aveninae)

open access: yesJournal of Systematics and Evolution, EarlyView.
Phylogenetic relationships within Koeleriinae clades A and B are examined using DNA sequences of plastid rpl32‐trnL, rps16‐trnK, rps16 intron, and ITS regions. Phylogenetic analyses of different selected data sets yielded mostly congruent topologies in nuclear and plastid trees.
Patricia Barberá   +6 more
wiley   +1 more source

Impacts of climatic niche breadth, phylogeny, traits and ploidy on geographical ranges of Betula species

open access: yesJournal of Systematics and Evolution, EarlyView.
Geographical range size is a fundamental ecological characteristic of a species. We quantified the effects of phylogeny, climatic niche breadth, morphological traits and ploidy on range size variation of Betula species. Climatic niche breadth has the strongest effect on the range size variation of Betula species.
Feifei Yan   +5 more
wiley   +1 more source

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