Results 51 to 60 of about 761 (161)

Eragrostis curvula, a Model Species for Diplosporous Apomixis. [PDF]

open access: yesPlants (Basel), 2021
Eragrostis curvula (Schrad.) Ness is a grass with a particular apomictic embryo sac development called Eragrostis type. Apomixis is a type of asexual reproduction that produces seeds without fertilization in which the resulting progeny is genetically ...
Carballo J   +4 more
europepmc   +3 more sources

New records and observations of macroalgae and associated pathogens from the Falkland Islands, Patagonia and Tierra del Fuego [PDF]

open access: yes, 2016
Subantarctic and Antarctic regions remain little explored with regards to their seaweed diversity. This study is based upon collections in the early 1970s and 2007–2013.
Asensi, Aldo O   +10 more
core   +1 more source

Harnessing the developmental potential of nucellar cells: Barriers and opportunities [PDF]

open access: yes, 2004
Angiosperm nucellar cells can either use or avoid meiosis in vivo, depending on the developmental context. This unique ability contrasts with the conditions required in vitro, either for a reconstituted oocyte to avoid meiosis and produce clones by ...
Ranganath, R.M.
core   +1 more source

Molecular Basis of Apomixis in Plants [PDF]

open access: yes, 2022
Apomixis is the consequence of a concerted mechanism that harnesses the sexual machinery and coordinates developmental steps in the ovule to produce an asexual (clonal) seed.

core   +1 more source

Crop biotechnology: prospects and opportunities [PDF]

open access: yes, 2010
SUMMARYThis paper is a brief review summarizing some of the important areas of activity in crop biotechnology likely to be exploited over the medium term (10–20 years), with an emphasis on agronomic traits.
Dunwell, J. M.
core   +1 more source

Transient Activation of Apomixis in Sexual Neotriploids May Retain Genomically Altered States and Enhance Polyploid Establishment

open access: yesFrontiers 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

Recent Progress on Plant Apomixis for Genetic Improvement. [PDF]

open access: yesInt J Mol Sci
Apomixis is a reproductive process that produces clonal seeds while bypassing meiosis (or apomeiosis) without undergoing fertilization (or pseudo-fertilization).
Xue L   +10 more
europepmc   +2 more sources

De novo sequencing of the Hypericum perforatum L. flower transcriptome to identify potential genes that are related to plant reproduction sensu lato [PDF]

open access: yes, 2015
Background: St. John's wort (Hypericum perforatum L.) is a medicinal plant that produces important metabolites with antidepressant and anticancer activities.
Barcaccia, Gianni   +3 more
core   +1 more source

Functional characterization of the diatom cyclin-dependent kinase A2 as a mitotic regulator reveals plant-like properties in a non-green lineage [PDF]

open access: yes, 2015
Background: Cyclin-dependent kinases (CDKs) are crucial regulators of cell cycle progression in eukaryotes. The diatom CDKA2 was originally assigned to the classical A-type CDKs, but its cell cycle phase-specific transcription at the G2-to-M phase ...
Bowler, Chris   +4 more
core   +2 more sources

Analysis of variation for apomictic reproduction in diploid Paspalum rufum [PDF]

open access: yes, 2014
Background and Aims: The diploid cytotype of Paspalum rufum (Poaceae) reproduces sexually and is self-sterile; however, recurrent autopolyploidization through 2n + n fertilization and the ability for reproduction via apomixis have been documented in one ...
Delgado Benarroch, Luciana   +5 more
core   +2 more sources

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