Results 91 to 100 of about 1,091 (183)
Ecology and Evolution, Volume 15, Issue 12, December 2025.Along temperature gradients such as elevation and latitude, species typically occupy distinct ranges, and life at the extremes may come with adaptive and non‐adaptive genomic changes. In the Brassicaceae family, comparative genomics revealed that geo‐climatic factors strongly predict genome size and transposable element (TE) content, explaining up to ...
Jana M. Flury +3 more
wiley +1 more source
Apomeiotic pollen mother cell development in the apomictic Boechera species
Biologia plantarum, 2009 Pollen mother cell (PMC) development in the apomictic Boechera species B. holboellii, B. gunnisoniana and B. divaricarpa were investigated by various cytological methods. In prophase I, in triploid species B. holboellii and B. gunnisoniana the individual chromosomes condensed into long strands within the nucleus. Then, in metaphase I, each PMC formed a
Taskin, K. M., Turgut, K., Scott, R. J.
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American Journal of Botany, Volume 112, Issue 11, November 2025.Abstract Why did it take so long for angiosperms to diversify after they arose? Here I consider the indirect but potentially crucial impact of the “photosynthetic revolution” on plant–herbivore coevolution. Increased vein density in fossil leaves implies a doubling in photosynthesis 125–100 million years ago.
Thomas J. Givnish
wiley +1 more source
Reproductive Barriers and Genomic Hotspots of Adaptation During Allopatric Species Divergence
Molecular Ecology, Volume 34, Issue 21, November 2025.ABSTRACT Theory predicts that in allopatric populations, genomic divergence and reproductive barriers may be driven by random genetic drift and thereby evolve slowly in large populations. However, local adaptation and divergence under selection may also play important roles, which remain poorly characterised.
Riddhi Deshmukh +4 more
wiley +1 more source
Genome-wide identification and expression analysis of SWI1 genes in Boechera species
Computational Biology and Chemistry, 2016 As a mode of reproduction in plants, apomixis leads to the generation of clones via seeds. Apomictic plants form viable diploid female gametes without meiosis (apomeiosis) and produce embryos without fertilization (parthenogenesis). Apomeiosis, as a major component of apomixis, has recently been reported in some Arabidopsis thaliana mutants; dyad ...
Fatih Sezer +3 more
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Genome Biology, 2019 Following publication of the original article [1], the authors reported that the Availability of data and materials section required updating. The updated text reads as follows:
Baosheng Wang +11 more
doaj +1 more source
Фактори експериментальної еволюції організмів, 2013 Aims. Apomixis is the seeds-without-sex reproduction of floral plants at which germs in seeds arise from cells of maternal genotype without participation both genetic recombination and syngamy (fusion of male and female gametes).
G. A. Gerashchenkov, N. A. Rozhnova
doaj
bioRxiv, 2017 Phenotypic plasticity is thought to impact evolutionary trajectories by shifting trait values in a direction that is either favored by natural selection (“adaptive plasticity”) or disfavored (“nonadaptive” plasticity). However, it is unclear how commonly
Maggie R. Wagner, T. Mitchell-Olds
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Boechera canadensis Al-Shehbaz 1817
, 2007 Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part A), pp. 252-342 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 308, DOI: 10.5281/zenodo ...
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Ecological differentiation facilitates fine-scale coexistence of sexual and asexual Boechera
American-Eurasian journal of botany, 2018 Premise of the study: Ecological differentiation (ED) between sexual and asexual organisms may permit the maintenance of reproductive polymorphism. Several studies of sexual/asexual ED in plants have shown that the geographic ranges of asexuals extend ...
Catherine A. Rushworth +3 more
semanticscholar +1 more source