Results 21 to 30 of about 302 (111)
TRIMETHYLGUANOSINE SYNTHASE1 mutations decanalize female germline development in Arabidopsis
New Phytologist, Volume 240, Issue 2, Page 597-612, October 2023., 2023 Summary Here, we report the characterization of a plant RNA methyltransferase, orthologous to yeast trimethylguanosine synthase1 (Tgs1p) and whose downregulation was associated with apomixis in Paspalum grasses. Using phylogenetic analyses and yeast complementation, we determined that land plant genomes all encode a conserved, specific TGS1 protein ...
Lorena A. Siena +7 more
wiley +1 more source
The spread of infectious asexuality through haploid pollen
New Phytologist, Volume 230, Issue 2, Page 804-820, April 2021., 2021 Summary The mechanisms of initiation and transmission of apomixis (asexual reproduction through seeds) in natural plant populations are important for understanding the evolution of reproductive variation. Here, we used the phylogenetic diversity of the genus Boechera (Brassicaceae), together with natural diversity in pollen types produced by apomictic ...
Martin Mau +6 more
wiley +1 more source
Skipping sex: A nonrecombinant genomic assemblage of complementary reproductive modules
BioEssays, Volume 43, Issue 1, January 2021., 2021 Asexuality arises through developmental alterations with apparently unrelated origins. We show the occurrence of asexual animals and plants have a common genetic and developmental basis on a single nonrecombinant assemblage of genomic elements altering complementary reproductive modules.
Diego Hojsgaard, Manfred Schartl
wiley +1 more source
Apomictic and sexual germline development differ with respect to cell cycle, transcriptional, hormonal and epigenetic regulation. [PDF]
PLoS Genetics, 2014 Seeds of flowering plants can be formed sexually or asexually through apomixis. Apomixis occurs in about 400 species and is of great interest for agriculture as it produces clonal offspring. It differs from sexual reproduction in three major aspects: (1)
Anja Schmidt +8 more
doaj +1 more source
Phylogenetically Distant BABY BOOM Genes From Setaria italica Induce Parthenogenesis in Rice
Frontiers in Plant Science, 2022 The combination of apomixis and hybrid production is hailed as the holy grail of agriculture for the ability of apomixis to fix heterosis of F1 hybrids in succeeding generations, thereby eliminating the need for repeated crosses to produce F1 hybrids ...
Lovepreet Singh Chahal +4 more
doaj +1 more source
Frontiers in Plant Science, 2018 Polyploid genomes evolve and follow a series of dynamic transfigurations along with adaptation and speciation. The initial formation of a new polyploid individual within a diploid population usually involves a triploid bridge, a two-step mechanism of ...
Diego Hojsgaard
doaj +1 more source
The Boechera Genus as a Resource for Apomixis Research
Frontiers in Plant Science, 2019 The genera Boechera (A. Löve et D. Löve) and Arabidopsis, the latter containing the model plant Arabidopsis thaliana, belong to the same clade within the Brassicaceae family.
Vladimir Brukhin +8 more
doaj +1 more source
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New Phytologist, 2013 Summary Apomixis or asexual seed formation in Hieracium praealtum (Asteraceae) is controlled by two independent dominant loci. One of these, the LOSS OF APOMEIOSIS (LOA) locus, controls apomixis initiation, mitotic embryo sac formation (apospory) and suppression of the sexual pathway.
Kotani, Y. +7 more
openaire +5 more sources
Identifying and Engineering Genes for Parthenogenesis in Plants
Frontiers in Plant Science, 2019 Parthenogenesis is the spontaneous development of an embryo from an unfertilized egg cell. It naturally occurs in a variety of plant and animal species.
Kitty Vijverberg +2 more
doaj +1 more source
Bio-Protocol, 2015 Seeds derived from a diploid, sexual plant typically contain a 2n embryo (n+n) and 3n endosperm, a ratio characteristic for most flowering plants. However, this ratio is altered in apomictic species, which reproduce asexually through seeds (Koltunow and ...
Christian Sailer +2 more
doaj +1 more source