Environmental and Genetic Factors Affecting Apospory Expressivity in Diploid Paspalum rufum [PDF]
Plants, 2021 In angiosperms, gametophytic apomixis (clonal reproduction through seeds) is strongly associated with polyploidy and hybridization. The trait is facultative and its expressivity is highly variable between genotypes.
Mariano Soliman +5 more
doaj +3 more sources
Differential Epigenetic Marks Are Associated with Apospory Expressivity in Diploid Hybrids of Paspalum rufum [PDF]
Plants, 2021 Apomixis seems to emerge from the deregulation of preexisting genes involved in sexuality by genetic and/or epigenetic mechanisms. The trait is associated with polyploidy, but diploid individuals of Paspalum rufum can form aposporous embryo sacs and ...
Mariano Soliman +6 more
doaj +3 more sources
Apospory and Diplospory in Diploid Boechera (Brassicaceae) May Facilitate Speciation by Recombination-Driven Apomixis-to-Sex Reversals [PDF]
Frontiers in Plant Science, 2019 Apomixis (asexual seed formation) in angiosperms occurs either sporophytically, through adventitious embryony, or gametophytically, where an unreduced female gametophyte (embryo sac) forms and produces an unreduced egg that develops into an embryo ...
John G Carman +2 more
exaly +6 more sources
Spotting the Targets of the Apospory Controller TGS1 in Paspalum notatum [PDF]
Plants, 2022 Sexuality and apomixis are interconnected plant reproductive routes possibly behaving as polyphenic traits under the influence of the environment.
Carolina Marta Colono +5 more
doaj +4 more sources
High-Resolution Linkage Map With Allele Dosage Allows the Identification of Regions Governing Complex Traits and Apospory in Guinea Grass (Megathyrsus maximus) [PDF]
Frontiers in Plant Science, 2020 Forage grasses are mainly used in animal feed to fatten cattle and dairy herds, and guinea grass (Megathyrsus maximus) is considered one of the most productive of the tropical forage crops that reproduce by seeds.
Mateus Santos +2 more
exaly +4 more sources
Establishment of Apomixis in Diploid F2 Hybrids and Inheritance of Apospory From F1 to F2 Hybrids of the Ranunculus auricomus Complex [PDF]
Frontiers in Plant Science, 2018 Hybridization and polyploidization play important roles in plant evolution but it is still not fully clarified how these evolutionary forces contribute to the establishment of apomicts.
Birthe H Barke +2 more
exaly +4 more sources
Micro- and megagametogenesis in Cichorium intybus L.: succes sive stages and some symptoms of apospory [PDF]
Acta Societatis Botanicorum Poloniae, 2014 In Cichorium intybus L., the mode of reproduction could be at the same time sexual and apomicbic. This could explain the contradictions existing in the interpretation of the heritaibidity of the characters in this species.
Beatice Longly, B. P. Louant
doaj +2 more sources
Heterosis and Expressivity of Apospory in Tetraploid Bahiagrass Hybrids [PDF]
Crop Science, 2015 ABSTRACTBreeding procedures developed for apomictic species are based on the idea of fixing superior hybrids by apomixis. However, scarce information is available about the occurrence of heterosis in apomictic hybrids. The objective was to generate a group of apomixis‐segregating tetraploid bahiagrass (Paspalum notatum Flüggé) families, evaluate the ...
Zilli, Alex Leonel +6 more
openaire +4 more sources
The Auxin-Response Repressor IAA30 Is Down-Regulated in Reproductive Tissues of Apomictic Paspalum notatum [PDF]
Plants, 2022 The capacity for apomixis in Paspalum notatum is controlled by a single-dominant genomic region, which shows strong synteny to a portion of rice chromosome 12 long arm.
Lorena Adelina Siena +6 more
doaj +2 more sources
Identification of ovule transcripts from the Apospory-Specific Genomic Region (ASGR)-carrier chromosome [PDF]
BMC 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 +3 more sources