Results 21 to 30 of about 3,612 (210)

Haploinsufficiency of the sex-determining genes at MATα restricts genome expansion in Saccharomyces cerevisiae

open access: yesiScience, 2022
Summary: In Saccharomyces cerevisiae, mating type of haploid cells is determined by the presence or absence of the MATα idiotype containing MATα1 and MATα2, which encode the transcription factors.
Kazumasa Oya, Akira Matsuura
doaj   +1 more source

Imaging plant germline differentiation within Arabidopsis flowers by light sheet microscopy [PDF]

open access: yes, 2020
In higher plants, germline differentiation occurs during a relatively short period within developing flowers. Understanding of the mechanisms that govern germline differentiation lags behind other plant developmental processes.
Bainar, Petr   +8 more
core   +1 more source

Unreduced megagametophyte production in lemon occurs via three meiotic mechanisms, predominantly second-division restitution [PDF]

open access: yes, 2017
Unreduced (2n) gametes have played a pivotal role in polyploid plant evolution and are useful for sexual polyploid breeding in various species, particularly for developing new seedless citrus varieties.
Houssem Rouiss   +5 more
core   +5 more sources

Stable Artificial Autopolyploids of the Zn/Cd Accumulator Arabidopsis arenosa—A Promising Genetic Resource for Phytoremediation

open access: yesApplied Sciences, 2023
Arabidopsis arenosa is a good candidate for phytoremediation due to its high tolerance to Zn and Cd as well as its accumulation ability. However, its small size and low biomass are the largest obstacles to applying it on a broad scale.
Agnieszka Kurdziel   +6 more
doaj   +1 more source

Sexual reproduction, hybridization, apomixis, and polyploidization in the genus Boechera (Brassicaceae) [PDF]

open access: yesAmerican Journal of Botany, 2005
Of the 340 genera in the Brassicaceae, apomictic reproduction is found only in the North American genus Boechera. We investigated phylogenetic relationships, ability to hybridize, mating system, and ploidy levels of 92 lines sampled from 85 populations and representing 19 Boechera species.
Schranz, M.   +3 more
openaire   +4 more sources

Microsporogenesis associated with seed yield in Urochloa sexual polyploid hybrids

open access: yesCrop Breeding and Applied Biotechnology, 2021
Abstract High seed yield is a fundamental characteristic of apomictic and sexual hybrids of the genus Urochloa P. Beauv. (syn. Brachiaria (Trin.) Griseb.). It has been suggested that there is an association between polyploidy, the presence of meiotic irregularities, and low seed formation in this genus.
Celina de Medeiros Ragalzi   +5 more
openaire   +3 more sources

Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways [PDF]

open access: yesScientific Reports, 2020
Fil: Honfi, Ana Isabel. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina.
Karunarathne, Piyal   +5 more
openaire   +6 more sources

Eunuchs or Females? Causes and Consequences of Gynodioecy on Morphology, Ploidy, and Ecology of Stellaria graminea L. (Caryophyllaceae)

open access: yesFrontiers in Plant Science, 2021
Plant speciation results from intricate processes such as polyploidization, reproductive strategy shifts and adaptation. These evolutionary processes often co-occur, blurring their respective contributions and interactions in the speciation continuum ...
Jaromír Kučera   +8 more
doaj   +1 more source

Geographical and life-history traits associated with low and high species richness across angiosperm families

open access: yesFrontiers in Plant Science, 2023
IntroductionThe phenomenal expansion of angiosperms has prompted many investigations into the factors driving their diversification, but there remain significant gaps in our understanding of flowering plant species diversity.MethodsUsing the crown age of
Miriam Monserrat Ferrer   +3 more
doaj   +1 more source

Omics of an Enigmatic Marine Amoeba Uncovers Unprecedented Gene Trafficking from Giant Viruses and Provides Insights into Its Complex Life Cycle

open access: yesMicrobiology Research, 2023
Amoebozoa include lineages of diverse ecology, behavior, and morphology. They are assumed to encompass members with the largest genome sizes of all living things, yet genomic studies in the group are limited. Trichosphaerium, a polymorphic, multinucleate,
Yonas I. Tekle   +4 more
doaj   +1 more source

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