Results 81 to 90 of about 22,407 (233)
Ecological and evolutionary implications of hybridization, polyploidy and apomixis in angiosperms
Hybridization, polyploidy, and apomixis are related to the diversification of angiosperms, generating complex taxonomic relationships between species. Despite the differences in the frequencies of these phenomena, apomixis, the asexual seed production ...
Cinthya I. Cervantes-Díaz+2 more
doaj +1 more source
Tracing the biogeographic history of the world's most isolated insular floras
We inferred the spatio–temporal colonization histories of seven vascular plant lineages (Acaena magellanica, Austroblechnum penna‐marina, Azorella selago, Colobanthus kerguelensis, Notogrammitis crassior, Polystichum marionense, Pringlea antiscorbutica) using phylogenetic, divergence time estimation, and Bayesian Island Biogeographic analyses.
Ángela Aguado‐Lara+7 more
wiley +1 more source
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
ABSTRACT Understanding the evolutionary processes underlying range‐wide genomic variation is critical to designing effective conservation and restoration strategies. Evaluating the influence of connectivity, demographic change and environmental adaptation for threatened species can be invaluable to proactive conservation of evolutionary potential.
Anthony E. Melton+6 more
wiley +1 more source
Summary Polyploidy plays a major role in diversification and speciation of almost all plants. Separately, the microbiome is recognized for its ubiquitous role in plant functioning. Despite the importance of both processes, we lack a synthetic picture of their reciprocal relationship.
Tia‐Lynn Ashman
wiley +1 more source
Chemotherapy induced polyploidy is a mechanism of inherited drug resistance resulting in an aggressive disease course in cancer patients. Alisertib, an Aurora Kinase A (AK-A) ATP site inhibitor, induces cell cycle disruption resulting in polyaneuploidy ...
Patrick J. Conway+6 more
doaj
Genetic diversity is essential for species to adapt to environmental changes. In restoration efforts, such as those after large wildfires in the sagebrush steppe of the Great Basin, commercially produced native seeds are used to revegetate the burned areas.
Lina Aoyama+3 more
wiley +1 more source
Polyploidy and the Cellular and Areal Diversity of Rat Cortical Layer 5 Pyramidal Neurons
In many species, polyploidy, in which an increase in nuclear DNA content is accompanied by an increase in cell size, contributes to cellular diversity.
Johanna Sigl-Glöckner, Michael Brecht
doaj +1 more source
The practice and promise of temporal genomics for measuring evolutionary responses to global change
Abstract Understanding the evolutionary consequences of anthropogenic change is imperative for estimating long‐term species resilience. While contemporary genomic data can provide us with important insights into recent demographic histories, investigating past change using present genomic data alone has limitations.
René D. Clark+9 more
wiley +1 more source
Background Modern allotetraploid cotton contains an “A” and “D” genome from an ancestral polyploidy event that occurred approximately 1–2 million years ago.
Flagel Lex E+2 more
doaj +1 more source