Exploiting Unreduced Gametes for Improving Ornamental Plants [PDF]
Frontiers 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]
Plants, 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 +2 more sources
Asynapsis and unreduced gamete formation in a Trifolium interspecific hybrid [PDF]
BMC 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 +3 more sources
Production of viable male unreduced gametes in
BMC 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 +2 more sources
Naturally Occurring Triploidy in Cannabis [PDF]
Plants, 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
Assessment of Gene Flow Between Gossypium hirsutum and G. herbaceum: Evidence of Unreduced Gametes in the Diploid Progenitor [PDF]
G3: 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 +2 more sources
Chromosome segregation in plant meiosis [PDF]
Frontiers in Plant Science, 2014 Faithful chromosome segregation in meiosis is essential for ploidy stability over sexual life cycles. In plants, defective chromosome segregation caused by gene mutations or other factors leads to the formation of unbalanced or unreduced gametes creating
Linda eZamariola +4 more
doaj +4 more sources
Genetic composition and heterozygosity of gibberellin-induced 2n gametes evaluated by SSR markers in Populus [PDF]
BMC Plant BiologyBackground The artificial induction of unreduced (2n) gametes, due to first division restitution (FDR) or second division restitution (SDR), is an important method to produce triploids in higher plants.
Yifan Zhao +14 more
doaj +2 more sources
RNA-seq analyses on gametogenic tissues of alfalfa (Medicago sativa) revealed plant reproduction- and ploidy-related genes [PDF]
BMC Plant BiologyBackground In alfalfa (Medicago sativa), the coexistence of interfertile subspecies (i.e. sativa, falcata and coerulea) characterized by different ploidy levels (diploidy and tetraploidy) and the occurrence of meiotic mutants capable of producing ...
Fabio Palumbo +9 more
doaj +2 more sources
EVOLUTIONARY DYNAMICS OF AUTOPOLYPLOIDS IN NATURAL POPULATIONS: THE CASE OF TURNERA SIDOIDES COMPLEX [PDF]
BAG. Journal of Basic and Applied Genetics, 2022 Turnera sidoides (x=7) is one of the few well-studied South American autopolyploid complexes. Since polyploidy has played a prominent role within this complex, ongoing studies in T.
Kovalsky I.E. +11 more
doaj +1 more source