Results 111 to 120 of about 30,417 (268)
Plant Breeding, EarlyView.ABSTRACT The combination of polyploidy, apomixis and the formation of aneuploid and interploid hybrids makes the genus Urochloa an interesting system for investigating meiotic stability and genome behaviour in grasses. In this study, routine meiotic analysis and genomic in situ hybridization (GISH) were used to (i) evaluate meiosis in three hybrids of ...
Isabella Campos Moraes +3 more
wiley +1 more source
, 2017 Although numerous studies have surveyed the frequency with which different plant characters are associated with polyploidy, few statistical tools are available to identify the factors that potentially facilitate polyploidy.
Burleigh, J. Gordon +5 more
core +1 more source
The Evolutionary Consequences of Polyploidy [PDF]
Cell, 2007 Polyploidization, the addition of a complete set of chromosomes to the genome, represents one of the most dramatic mutations known to occur. Nevertheless, polyploidy is well tolerated in many groups of eukaryotes. Indeed, the majority of flowering plants and vertebrates have descended from polyploid ancestors.
openaire +2 more sources
Binucleation ramps up gene expression meeting the physiological demands of an organism
PLoS Biology, 2022 In this issue of PLOS Biology, van Rijnberk and colleagues show how polyploidy, via binucleation, enables Caenorhabditis elegans intestinal cells to ramp up gene expression supplying the oocytes with the necessary lipids for optimal organismal growth and
Ari S. Dehn, Vicki P. Losick
doaj
Plant Breeding, EarlyView.ABSTRACT Peanut (Arachis hypogaea L., 2n = 4x = 40, AABB) is an important legume crop worldwide. Wild peanuts (Arachis spp.) represent a valuable secondary gene pool with diverse disease resistances. However, most wild peanut species are diploid (2n = 2x = 20) and this ploidy barrier is a major obstacle to hybridization and gene introgression.
Chia‐Hung Shih +4 more
wiley +1 more source
Polyploidy in vertebrate ancestry: Ohno and beyond
, 2004 Over 30 years ago, Susumu Ohno proposed that two rounds of polyploidy occurred early in vertebrate evolution. We re-examine this proposal using three recent lines of evidence.
Holland, Peter, Furlong, RF
core +1 more source
Plant Breeding, EarlyView.ABSTRACT Unreduced gametes naturally promote polyploidization and are valuable in breeding polyploid offspring. Bigleaf hydrangea (Hydrangea macrophylla ssp. macrophylla), a major ornamental crop, has shown spontaneous polyploidization rates ranging from 0% to 94% in previous crosses.
Conny Tränkner, Anke Müller
wiley +1 more source
Effects of crossing distance on components of fitness in two rare rock plants
Plant Biology, EarlyView.Crossing experiments between populations of the rare rock species Saxifraga rosacea ssp. rosacea (8×) and S. rosacea ssp. sponhemica (6×) resulted in heterosis for some traits and outbreeding depression for others. Crossing the two subspecies resulted in sterile hybrids indicating that mixing populations of rare species is not always beneficial ...
G. Colling, L. Decanter, D. Matthies
wiley +1 more source
Genotype-specific responses to polyploidy induction in coriander using colchicine treatments
Discover PlantsPolyploidy plays a critical role in driving diversification and adaptation in many plant species, affecting physiological, developmental, and morphological traits. Here, we explore genotype-specific responses to colchicine-induced polyploidy in coriander
Zahra Zangishehei +2 more
doaj +1 more source
Context‐dependent decision‐making in seed sourcing for restoration: reply to Beck et al. (2025)
Restoration Ecology, EarlyView.Determining the best seed sources for restoration can be a challenge for practitioners, especially under climate change. The number of variables and the spectrum of potential solutions can be daunting. No singular seed sourcing strategy, “local‐is‐best” or otherwise, is appropriate for all species and restoration efforts.
Hayley R. Tumas +7 more
wiley +1 more source