Results 21 to 30 of about 1,836 (191)

Transcriptome Analysis of Young Ovaries Reveals Candidate Genes Involved in Gamete Formation in Lantana camara

Plants, 2019
Lantana (Lantana camara L., Verbenaceae) is an important ornamental crop, yet can be a highly invasive species. The formation of unreduced female gametes (UFGs) is a major factor contributing to its invasiveness and has severely hindered the development ...
Ze Peng, Krishna Bhattarai, Saroj Parajuli, Zhe Cao, Zhanao Deng   +4 more
doaj   +1 more source

Hybridity of mainly asexually propagating duckweeds in genus Lemna - dead end or breakthrough? [PDF]

New Phytol
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.
Lee Y, Braglia L, Stepanenko A, Fuchs J, Schubert V, Gianì S, Romano LE, Aronne G, Forti C, Schubert I, Morello L.   +10 more
europepmc   +2 more sources

Does hybridization between divergent progenitors drive whole-genome duplication? [PDF]

, 2009
This is the peer reviewed version of the following article: BUGGS, R. J. A., SOLTIS, P. S. and SOLTIS, D. E. (2009), Does hybridization between divergent progenitors drive whole-genome duplication?.
Buggs, RJA, Soltis, DE, Soltis, PS
core   +1 more source

In Support of Winge's Theory of “Hybridization Followed by Chromosome Doubling”

Frontiers in Plant Science, 2020
Polyploidy—or chromosome doubling—plays a significant role in plant speciation and evolution. Much of the existing evidence indicates that fusion of unreduced (or 2n) gametes is the major pathway responsible for polyploid formation. In the early 1900s, a
Noemi Tel-Zur, Joseph Mouyal, Udi Zurgil, Yosef Mizrahi   +3 more
doaj   +1 more source

The DcPS1 cooperates with OSDLa during pollen development and 2n gamete production in carnation meiosis

BMC Plant Biology, 2022
Background Deciphering the mechanisms of meiosis has important implications for potential applications in plant breeding programmes and species evolution.
Xuhong Zhou, Shuying Li, Xiaomi Yang
doaj   +1 more source

Diploid origins and early genome stabilization in the allotetraploid Arabidopsis suecica. [PDF]

New Phytol
Summary Polyploidization, followed by genome downsizing, is a recurrent evolutionary cycle that dramatically reshapes genome structure. Newly formed polyploids must quickly adjust their cell division machinery to maintain stable chromosome inheritance, while long‐term stabilization involves rediploidization, returning the genome to a diploid‐like state.
Burns R, Glushkevich A, Kulkarni A, Kolesnikova UK, Kolář F, Scott AD, Novikova PY.   +6 more
europepmc   +2 more sources

Cold-induced male meiotic restitution in Arabidopsis thaliana is not mediated by GA-DELLA signaling [PDF]

, 2018
Short periods of cold stress induce male meiotic restitution and diploid pollen formation in Arabidopsis thaliana by specifically interfering with male meiotic cytokinesis.
De Storme, Nico, Geelen, Danny, Liu, Bing   +2 more
core   +2 more sources

Production of viable male unreduced gametes in Brassica interspecific hybrids is genotype specific and stimulated by cold temperatures

BMC Plant Biology, 2011
Background Unreduced gametes (gametes with the somatic chromosome number) may provide a pathway for evolutionary speciation via allopolyploid formation.
Cowling Wallace A, Yan Guijun, Nelson Matthew N, Mason Annaliese S   +3 more
doaj   +1 more source

Temporal and spatial expression of genes involved in DNA methylation during reproductive development of sexual and apomictic Eragrostis curvula [PDF]

, 2017
Recent reports in model plant species have highlighted a role for DNA methylation pathways in the regulation of the somatic-to-reproductive transition in the ovule, suggesting that apomixis (asexual reproduction through seeds) likely relies on RdDM ...
Echenique, Carmen Viviana, Garbus, Ingrid, Leblanc, O., Ortiz, Juan Pablo Amelio, Pessino, Silvina Claudia, Rodrigo, Juan Manuel, Romero, José Rodolfo, Selva, Juan Pablo, Siena, Lorena Adelina, Zappacosta, Diego Carlos   +9 more
core   +1 more source

Polyploidy breaks speciation barriers in Australian burrowing frogs Neobatrachus [PDF]

, 2020
Polyploidy has played an important role in evolution across the tree of life but it is still unclear how polyploid lineages may persist after their initial formation.
Booker, William, Brennan, Ian G., Donnellan, Stephen C., Doughty, Paul, Keogh, J. Scott, Lemmon, Alan R., Mahony, Michael, Moriarty Lemmon, Emily, Novikova, Polina, Roberts, J. Dale, Van de Peer, Yves, Yant, Levi   +11 more
core   +4 more sources