Results 41 to 50 of about 426 (146)

Identification of ovule transcripts from the Apospory-Specific Genomic Region (ASGR)-carrier chromosome

open access: yesBMC Genomics, 2011
Background Apomixis, asexual seed production in plants, holds great potential for agriculture as a means to fix hybrid vigor. Apospory is a form of apomixis where the embryo develops from an unreduced egg that is derived from a somatic nucellar cell, the
Ozias-Akins Peggy   +2 more
doaj   +1 more source

Evidence of Allopolyploidy in Urochloa humidicola Based on Cytological Analysis and Genetic Linkage Mapping. [PDF]

open access: yesPLoS 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
doaj   +1 more source

The phase change in ferns

open access: yesActa Societatis Botanicorum Poloniae, 2014
It is argued that the phasic alternation of sporophyte and gametophyte in ferns involves changing gene activation during oogenesis and sporogenesis respectively.
P. R. Bell
doaj   +1 more source

Induction of Synthetic Apomixis in Two Sorghum Hybrids Enables Seed Yield and Genotype Preservation Over Multiple Generations

open access: yesPlant Biotechnology Journal, Volume 24, Issue 3, Page 1712-1724, March 2026.
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

Engineering meiotic recombination pathways in rice

open access: yesPlant 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
wiley   +1 more source

Reproductive strategy in the Ranunculus auricomus complex (ranunculaceae)

open access: yesActa Societatis Botanicorum Poloniae, 2014
A preliminary study of reproductive strategy was carried out on plants representing four cytotypes of the Ranunculus auricomus complex. Diploid plants reproduce sexually, triploids, tetraploids and hexaploids have an apomictic mode of reproduction ...
Romana Izmaiłow
doaj   +1 more source

Retro-Element Gypsy-163 Is Differentially Methylated in Reproductive Tissues of Apomictic and Sexual Plants of Cenchrus ciliaris

open access: yesFrontiers in Genetics, 2020
Apomixis, an asexual mode of reproduction through seeds, has immense scope for crop improvement due to its ability to fix hybrid vigor. In C. ciliaris, a predominantly apomictically reproducing range grass, apomixis is genetically controlled by an ...
Priyanka Rathore   +3 more
doaj   +1 more source

Bangiales (Rhodophyta) in New Zealand: current state of knowledge and future directions

open access: yesNew Zealand Journal of Botany, Volume 63, Issue 5, Page 2245-2263, December 2025.
ABSTRACT Members of the red algal order Bangiales are morphologically simple, with the gametophyte generation consisting of either filaments or blades, and the sporophyte generation consisting of microscopic uniseriate branched filaments. An ancient lineage, the order is distributed worldwide.
Wendy A. Nelson, Giuseppe C. Zuccarello
wiley   +1 more source

Building a botanical foundation for perennial agriculture: Global inventory of wild, perennial herbaceous Fabaceae species

open access: yesPLANTS, PEOPLE, PLANET, Volume 1, Issue 4, Page 375-386, October 2019., 2019
Wild, perennial, herbaceous plant species have the capacity to provide both agricultural products and ecological services, such as soil stability and efficient absorption, over multiple years. Although perennial, herbaceous species are common in nature, these species were rarely domesticated.
Claudia Ciotir   +15 more
wiley   +1 more source

Embryo sac development in some South African cultivars of Lantana camara

open access: yesBothalia: African Biodiversity & Conservation, 1982
Twenty embryo sacs from each of 20 different  Lantana camara L. cultivars naturalized in South Africa were examined. The normal sexual embryo sacs were monosporic 8-nucleated embryo sacs of the polygonum type and were encountered in 55% of the material ...
J. J. Spies, C. H. Stirton
doaj   +1 more source

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