Results 31 to 40 of about 1,836 (191)
Ecology and Evolution, 2021 Whole‐genome duplication is considered an important speciation mechanism in plants. However, its effect on reproductive isolation between higher cytotypes is not well understood.
Brittany L. Sutherland +1 more
doaj +1 more source
Meiocyte size is a determining factor for unreduced gamete formation in Arabidopsis thaliana
New Phytologist, 2022 Summary Polyploidy, the presence of more than two sets of chromosomes within a cell, is a widespread phenomenon in plants. The main route to polyploidy is considered through the production of unreduced gametes that are formed as a consequence of meiotic defects.
Jun Yi +6 more
openaire +4 more sources
Pathways to polyploidy : indications of a female triploid bridge in the alpine species Ranunculus kuepferi (Ranunculaceae) [PDF]
, 2017 Polyploidy is one of the most important evolutionary processes in plants. In natural populations, polyploids usually emerge from unreduced gametes which either fuse with reduced ones, resulting in triploid offspring (triploid bridge), or with other ...
De Storme, Nico +5 more
core +2 more sources
Somatic variants for seed and fruit set in grapevine
BMC Plant Biology, 2021 Background Grapevine reproductive development has direct implications on yield. It also impacts on berry and wine quality by affecting traits like seedlessness, berry and bunch size, cluster compactness and berry skin to pulp ratio. Seasonal fluctuations
Laura Costantini +11 more
doaj +1 more source
Production of Polyploids and Unreduced Gametes in Lilium auratum × L. henryi Hybrid [PDF]
International Journal of Biological Sciences, 2013 Intergenomic F1 hybrids between L. auratum x L. henryi and their BC1 progeny were investigated through genomic in situ hybridization technique (GISH) to determine their potential value in lily breeding. We confirmed that F1 intergenomic hybrids possessed a set of chromosomes (x=12) from both parents and that flowers of the F1 auratum × henryi hybrid ...
Young Chung, Mi +4 more
openaire +3 more sources
Production of Triploid Hydrangea macrophylla via Unreduced Gamete Breeding [PDF]
HortScience, 2017 Hydrangea macrophylla (Thunb.) Ser., florist’s or bigleaf hydrangea, is the most economically important member of the Hydrangea genus, which accounted for over $120,000,000 in U.S. nursery sales in 2014. Both diploid and triploid H. macrophylla cultivars exist and there is some evidence that triploidy leads to larger plant and floral structures.
openaire +1 more source
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 +1 more source
CENH3-GFP: a visual marker for gametophytic and somatic ploidy determination in Arabidopsis thaliana [PDF]
, 2016 Background: The in vivo determination of the cell-specific chromosome number provides a valuable tool in several aspects of plant research. However, current techniques to determine the endosystemic ploidy level do not allow non-destructive, cell-specific
Angenon, Geert +4 more
core +5 more sources
Occurrence of Unreduced Female Gametes Leads to Sexual Polyploidization in Lantana [PDF]
Journal of the American Society for Horticultural Science, 2009 Lantana camara , a member of the verbena family, is a popular ornamental yet highly invasive plant. It can escape from cultivation through seed dispersal and can contaminate native lantana species ( Lantana depressa ) through cross-pollination. Ploidy manipulation is being
David M. Czarnecki, Zhanao Deng
openaire +1 more source
PLoS ONE, 2013 The complex process of allopolyploid speciation includes various mechanisms ranging from species crosses and hybrid genome doubling to genome alterations and the establishment of new allopolyploids as persisting natural entities.
Yoshihiro Matsuoka +6 more
doaj +1 more source