Results 21 to 30 of about 2,997 (195)
Cell fusion as the formation mechanism of unreduced gametes in the gynogenetic diploid hybrid fish. [PDF]
Sci Rep, 2016 AbstractThe gynogenetic diploid hybrid clone line (GDH) derived from red crucian carp (♀ RCC) × common carp (♂ CC) possesses the unusual reproductive trait of producing unreduced diploid eggs. To identify the mechanism underlying this phenomenon, we examined the structure, in vivo developmental process and in vitro dynamic development of the GDH gonad.
Wang J +8 more
europepmc +4 more sources
Plants, 2023 Historically, crosses between Medicago sativa (alfalfa) and M. arborea with alfalfa as the seed parent failed, as did crosses using M. arborea as the seed parent. Thus, a reproductive barrier kept the two species isolated until early in this century. The
Edwin Bingham, John Irwin
doaj +1 more source
BIO Web of Conferences, 2020 The first spontaneous cherry polyploids were detected in the Altai gene pool of Russia and inside of the interspecific hybrids of Prunus fruticosa Pall. only.
Mochalova Olga V.
doaj +1 more source
Horticulturae, 2023 Banana breeding faces numerous challenges, such as sterility and low seed viability. Enhancing our understanding of banana genetics, notably through next-generation sequencing, can help mitigate these challenges.
Alberto Cenci +6 more
doaj +1 more source
How environment and genetic architecture of unreduced gametes shape the establishment of autopolyploids. [PDF]
Heredity (Edinb)AbstractIt is broadly assumed that polyploidy success is due to an increase in fitness associated with whole genome duplication due to higher tolerance to stressful conditions. In agreement, several theoretical models found that, among other factors, a better tolerance to new environmental conditions can promote polyploidy establishment.
Cheng Y, Kolář F, Schmickl R, Clo J.
europepmc +2 more sources
Induction of Synthetic Apomixis in Two Sorghum Hybrids Enables Seed Yield and Genotype Preservation Over Multiple Generations. [PDF]
Plant Biotechnol JABSTRACT Induction of apomixis, or clonal reproduction through seed, could economise commercial hybrid seed production and enable smallholder farmers to save and sow hybrid seed. Here, we demonstrate the synthetic induction of apomixis in two sorghum hybrids and show that the clonal hybrid seed can be maintained across multiple seed generations.
Simon MK +7 more
europepmc +2 more sources
Abnormal meiosis in an intersectional allotriploid of Populus L. and segregation of ploidy levels in 2x × 3x progeny. [PDF]
PLoS ONE, 2017 Triploid plants are usually highly aborted owing to unbalanced meiotic chromosome segregation, but limited viable gametes can participate in the transition to different ploidy levels.
Jun Wang +4 more
doaj +1 more source
Unreduced megagametophyte production in lemon occurs via three meiotic mechanisms, predominantly second-division restitution [PDF]
, 2017 Unreduced (2n) gametes have played a pivotal role in polyploid plant evolution and are useful for sexual polyploid breeding in various species, particularly for developing new seedless citrus varieties.
Houssem Rouiss +5 more
core +2 more sources
Biologia Plantarum, 2011 Sexual polyploidization has both a theoretical as well as an applied significance. Morphological screening for large pollen grains and shape of pollen produced by the individual, cytological investigation of hybrid progeny, and unbalanced separation of ...
R. S. Talluri
doaj +1 more source
Cold-induced male meiotic restitution in Arabidopsis thaliana is not mediated by GA-DELLA signaling [PDF]
, 2018 Short periods of cold stress induce male meiotic restitution and diploid pollen formation in Arabidopsis thaliana by specifically interfering with male meiotic cytokinesis.
De Storme, Nico +2 more
core +2 more sources