Results 71 to 80 of about 23,545 (244)

Longevity in plants impacts phylogenetic and population dynamics

open access: yesNew Phytologist, EarlyView.
Summary Phylogenies of long‐lived plants often exhibit short molecular branch lengths and high levels of gene‐tree conflict. However, the biological mechanisms underlying these patterns remain unclear. We examine this with simulations and through empirical examination of several large seed plant clades.
Stephen A. Smith   +9 more
wiley   +1 more source

Polyploidy in Gymnosperms [PDF]

open access: yesEvolution, 1959
The gymnosperms constitute a primitive group of seed plants which have a considerable evolutionary interest. A substantial amount of literature on the morphology of the group exists, but very little has been written about the various cytogenetic factors responsible for evolution within the group.
openaire   +1 more source

polyploidy

open access: yes
Citation: 'polyploidy' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.11107 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

Hybridity of mainly asexually propagating duckweeds in genus Lemna – dead end or breakthrough?

open access: yesNew Phytologist, EarlyView.
Summary The cosmopolitan, mainly vegetatively propagating, organ‐reduced monocotyledonous aquatic duckweeds are the smallest and fastest growing angiosperms, distributed world‐wide and flower rarely in nature. Recently, we reported intra‐ and interspecific hybrids and ploidy variants in the genus Lemna.
Yuri Lee   +10 more
wiley   +1 more source

Karyotype analysis in 19 families from the Qinghai–Tibetan Plateau and its evolution implications

open access: yesCaryologia, 2022
The chromosome numbers and karyotypes of 79 species and accessions from 19 plant families growing on the Qinghai–Tibetan Plateau were investigated. For 31 species, we provided first insights into their chromosomal numbers and karyotypic characteristics ...
Ning Zhou
doaj  

Causes and consequences of bacterial local adaptation via MGEs in the plant microbiome

open access: yesNew Phytologist, EarlyView.
Summary Adaptations that enable plant‐associated bacteria to fill disparate niches comprise a critical component of microbial diversity. Genes that confer locally adaptive bacterial traits, ranging from heavy metal resistance to pathogen or symbiont infectivity, often reside within mobile genetic elements (MGEs) that can move between genomes.
Stephanie Porter   +3 more
wiley   +1 more source

Revisiting the relationship between stomatal size and speed across species – a meta‐analysis

open access: yesNew Phytologist, EarlyView.
Summary The rate of stomatal opening and closure in response to changes in light affects leaf photosynthesis and water use. However, it is unclear how strongly stomatal size (SS) and density (SD) influence stomatal conductance (gs) kinetics, and whether variation arises from methodological differences, guard cell type or degree of amphistomaty.
Nik Woning   +31 more
wiley   +1 more source

Reticulate allopolyploidy and subsequent dysploidy drive evolution and diversification in the cotton family

open access: yesNature Communications
Polyploidy and subsequent post-polyploid diploidization (PPD) are key drivers of plant genome evolution, yet their contributions to evolutionary success remain debated.
Ren-Gang Zhang   +17 more
doaj   +1 more source

Ecological and evolutionary implications of hybridization, polyploidy and apomixis in angiosperms

open access: yesBotan‪ical Sciences
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

Transmembrane Protein GbTMEM209 Inhibits Fibre Elongation via Competitive Interaction With GbHOX3 in Gossypium barbadense

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Sea Island cotton (Gossypium barbadense) produces premium‐quality fibres, yet the genetic basis underlying its fibre development remains elusive. Here, we identify two key non‐synonymous single nucleotide polymorphisms (SNPs, G/C and G/A) in the gene Gbar_D13G024080, which encodes the TRANSMEMBRANE PROTEIN 209 (TMEM209). These SNPs resulted in
Kaiyun Jiang   +25 more
wiley   +1 more source

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