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Exploiting Unreduced Gametes for Improving Ornamental Plants [PDF]

open access: goldFrontiers in Plant Science, 2022
The formation of gametes with somatic chromosome number or unreduced gametes (2n gametes) is an important process involved in the origin of polyploid plants in nature. Unreduced gametes are the result of meiotic mutations occurring during micro- and mega-
Li Xie   +4 more
doaj   +4 more sources

A Review of Unreduced Gametes and Neopolyploids in Alfalfa: How to Fill the Gap between Well-Established Meiotic Mutants and Next-Generation Genomic Resources [PDF]

open access: goldPlants, 2021
The gene flow mediated by unreduced gametes between diploid and tetraploid plants of the Medicagosativa-coerulea-falcata complex is pivotal for alfalfa breeding.
Fabio Palumbo   +3 more
doaj   +4 more sources

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

open access: goldBMC 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   +3 more
doaj   +4 more sources

Assessment of Gene Flow Between Gossypium hirsutum and G. herbaceum: Evidence of Unreduced Gametes in the Diploid Progenitor [PDF]

open access: goldG3: Genes, Genomes, Genetics, 2017
In the framework of a gene flow assessment, we investigated the natural hybridization rate between Gossypium hirsutum (AADD genome) and G. herbaceum (AA genome). The latter species, a diploid progenitor of G.
E. Montes   +9 more
doaj   +4 more sources

Asynapsis and unreduced gamete formation in a Trifolium interspecific hybrid

open access: goldBMC Plant Biology, 2022
Background Unreduced gametes, a driving force in the widespread polyploidization and speciation of flowering plants, occur relatively frequently in interspecific or intergeneric hybrids. Studies of the mechanisms leading to 2n gamete formation, mainly in
Helal A. Ansari   +3 more
doaj   +2 more sources

Unreduced Male Gamete Formation in Cymbidium and Its Use for Developing Sexual Polyploid Cultivars [PDF]

open access: goldFrontiers in Plant Science, 2020
Polyploidy plays an important role in crop improvement. Polyploid plants, particularly those produced through unreduced gametes (2n gametes), show increased organ size, improved buffering capacity for deleterious mutations, and enhanced heterozygosity ...
Rui-Zhen Zeng   +11 more
doaj   +2 more sources

Unzipped chromosome-level genomes reveal allopolyploid nematode origin pattern as unreduced gamete hybridization [PDF]

open access: goldNature Communications, 2023
The formation and consequences of polyploidization in animals with clonal reproduction remain largely unknown. Clade I root-knot nematodes (RKNs), characterized by parthenogenesis and allopolyploidy, show a widespread geographical distribution and ...
Dadong Dai   +13 more
doaj   +2 more sources

Shared pedigree relationships and transmission of unreduced gametes in cultivated banana. [PDF]

open access: hybridAnn Bot, 2023
Martin G   +10 more
europepmc   +3 more sources

Naturally Occurring Triploidy in Cannabis [PDF]

open access: yesPlants, 2023
Polyploidy is a significant evolutionary process in plants that involves the duplication of genomic content and has been recognized as a key mechanism driving plant diversification and adaptation.
Richard Philbrook   +5 more
doaj   +2 more sources

Polyploid cytotypes and formation of unreduced male gametes in wild and cultivated fennel (Foeniculum vulgare Mill.)

open access: goldCaryologia, 2023
. Foeniculum vulgare Mill. (2n=22) is an herbaceous species native to the Mediterranean region and naturalized in many temperate areas around the world. It includes subsp. piperitum and subsp.
Egizia Falistocco
doaj   +3 more sources

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