English Journal

Emergence of apospory and bypass of meiosis via apomixis after sexual hybridisation and polyploidisation.

Hojsgaard D1, Greilhuber J, Pellino M, Paun O, Sharbel TF, Hörandl E.
The New phytologist.New Phytol.2014 Dec;204(4):1000-12. doi: 10.1111/nph.12954. Epub 2014 Jul 31.
Hybridisation and polyploidy are major forces contributing to plant speciation. Homoploid (2x) and heteroploid (3x) hybrids, however, represent critical stages for evolution due to disturbed meiosis and reduced fertility. Apomixis--asexual reproduction via seeds--can overcome hybrid sterility, but r
PMID 25081588

PnTgs1-like expression during reproductive development supports a role for RNA methyltransferases in the aposporous pathway.

Siena LA, Ortiz JP, Leblanc O, Pessino S.
BMC plant biology.BMC Plant Biol.2014 Nov 18;14:297. doi: 10.1186/s12870-014-0297-0.
BACKGROUND: In flowering plants, apomixis (asexual reproduction via seeds) is widely believed to result from failure of key regulators of the sexual female reproductive pathway. In the past few years, both differential display and RNA-seq comparative approaches involving reproductive organs of sexua
PMID 25404464

Delgado L1, Galdeano F2, Sartor ME2, Quarin CL2, Espinoza F2, Ortiz JP3.
Annals of botany.Ann Bot.2014 Jun;113(7):1211-8. doi: 10.1093/aob/mcu056. Epub 2014 Apr 16.
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 genotype of the species. The objectives of thi
PMID 24739230