Results 151 to 160 of about 28,869 (295)
Data from: Parentage and sibship inference from markers in polyploids
Many plants and some animal species are polyploids. Non-disomically inherited markers (e.g. microsatellites) in such species cannot be analysed directly by standard population genetics methods developed for diploid species.
Scribner, Kim, Wang, Jinliang
core +1 more source
ABSTRACT Global food demand is predicted to rise anywhere from 59% to 98% by 2050 because of increasing population. However, the continued depletion of natural resources and increasing biotic and abiotic stresses will continue to pose significant threats to global food security in coming years.
Memoona Khalid +5 more
wiley +1 more source
A Century of Understanding and Harnessing Heterosis
ABSTRACT Heterosis has shaped modern plant breeding since Darwin's 19th century observations that outcrossing restores vigour lost through selfing. While 100 years old, its mechanistic basis and deployability remain actively debated. Classical models of dominance, overdominance and epistasis provided the foundation for hybrid breeding and converted ...
Mohsen Mohammadi
wiley +1 more source
ABSTRACT Doubled haploid technology accelerates the development of fully homozygous maize lines compared with conventional selfing. However, specific protocols for supersweet corn (Zea mays L. var. saccharata), particularly regarding immersion time in antimitotic solutions and temperature during chromosome doubling, remain poorly defined.
Vitor Joaquim de Lucena +7 more
wiley +1 more source
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
Induction and Identification of Colchicine-mediated Polyploidy in Three Rosa roxburghii Accessions
The induction of polyploidy in Rosa roxburghii has significant potential to enhance the horticultural and commercial value of this crop and meet specific market demands. In this study, seeds from three R.
Jine Li +5 more
doaj +1 more source
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
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
The objective of this study was to identify polyploid plants from citrus rootstocks and to evaluate the influence of the genetic constitution and of the environment on the frequency of chromosome duplication.
Divanilde Guerra +5 more
doaj
Triploid Ginkgo production from interploidy crossings
Ginkgo biloba is a phylogenetically, ornamentally, culturally, and medicinally important representative of gymnosperms. This group exhibits an extremely low frequency of polyploids, in contrast to the frequent and economically valuable polyploids found ...
Petr Šmarda +4 more
doaj +1 more source

