Results 61 to 70 of about 1,666 (209)
Embryo sac development in some representatives of the tribe Cynodonteae (Poaceae)
Bothalia: African Biodiversity & Conservation, 1994 Chloris virgata Sw., Cynodon dactylon (L.) Pers., Harpochloa falx (L. f.) Kuntze, and Tragus berteronianus Schult. have a Polygonum type of embryo sac development.
A. Strydom, J. J. Spies
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Frontiers in Plant Science, 2018 Apomixis is a clonal mode of reproduction via seeds, which results from the failure of meiosis and fertilization in the sexual female reproductive pathway. In previous transcriptomic surveys, we identified a mitogen-activated protein kinase kinase kinase
Micaela Mancini +16 more
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Inheritance of Apospory in Bahiagrass, Paspalum Notatum
Hereditas, 2004 Previous studies on the inheritance of aposporous apomixis in bahiagrass showed a wide range of segregation ratios in crosses involving sexual and aposporous apomictic plants. The F1 progenies were classified through a visual progeny test carried out on few F2 plants.
E J, Martínez +3 more
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Transcriptome analysis of the Arabidopsis megaspore mother cell uncovers the importance of RNA helicases for plant germline development. [PDF]
PLoS Biology, 2011 Germ line specification is a crucial step in the life cycle of all organisms. For sexual plant reproduction, the megaspore mother cell (MMC) is of crucial importance: it marks the first cell of the plant "germline" lineage that gets committed to undergo ...
Anja Schmidt +5 more
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New Phytologist, 2014 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.
D. Hojsgaard +5 more
semanticscholar +1 more source
Plant Biotechnology Journal, EarlyView.ABSTRACT Induction of apomixis, or clonal reproduction through seed, could economise commercial hybrid seed production and enable smallholder farmers to save and sow hybrid seed. Here, we demonstrate the synthetic induction of apomixis in two sorghum hybrids and show that the clonal hybrid seed can be maintained across multiple seed generations.
Marissa K. Simon +7 more
wiley +1 more source
Evidence of Allopolyploidy in Urochloa humidicola Based on Cytological Analysis and Genetic Linkage Mapping. [PDF]
PLoS ONE, 2016 The African species Urochloa humidicola (Rendle) Morrone & Zuloaga (syn. Brachiaria humidicola (Rendle) Schweick.) is an important perennial forage grass found throughout the tropics.
Bianca B Z Vigna +8 more
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Apomixis in Genista salzmannii DC. (Fabaceae) [PDF]
, 1991 Genista apomixis is described for the first time in two populations of Genista salzmannii DC.: the first is diploid and the second one tetraploid. There was no female meiosis and the megaspore mother cell functioned as an unreduced megaspore, which led ...
Diana, Silvana +1 more
core
Plant Breeding, EarlyView.ABSTRACT This study estimated the repeatability of forage traits in 84 Paspalum nicorae ecotypes using six statistical methods and quantified the minimum number of harvests needed for effective selection. Multivariate analyses based on best linear unbiased prediction (BLUP) values were also performed to assess genetic variability, identify key traits ...
Diógenes Cecchin Silveira +9 more
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Engineering meiotic recombination pathways in rice
Plant Biotechnology Journal, Volume 17, Issue 11, Page 2062-2077, November 2019., 2019 Summary In the last 15 years, outstanding progress has been made in understanding the function of meiotic genes in the model dicot and monocot plants Arabidopsis and rice (Oryza sativa L.), respectively. This knowledge allowed to modulate meiotic recombination in Arabidopsis and, more recently, in rice. For instance, the overall frequency of crossovers
Ian Fayos +6 more
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