Results 31 to 40 of about 72,523 (352)
Unreduced Male Gamete Formation in Cymbidium and Its Use for Developing Sexual Polyploid Cultivars
Frontiers in Plant Science, 2020 Polyploidy plays an important role in crop improvement. Polyploid plants, particularly those produced through unreduced gametes (2n gametes), show increased organ size, improved buffering capacity for deleterious mutations, and enhanced heterozygosity ...
R. Zeng +7 more
semanticscholar +1 more source
Expanded carrier screening should not be mandatory for gamete donors.
Human Reproduction, 2020 More and more centers are imposing expanded carrier screening (ECS) on their gamete donors. In some clinics and gamete banks, gamete donors are not given this right, contrary to the freedom to decline genetic screening in the general population.
G. Pennings
semanticscholar +1 more source
Microbiology Spectrum, 2023 Plasmodium parasites are the etiological agents of malaria, a disease responsible for over half a million deaths annually. Successful completion of the parasite’s life cycle in the vertebrate host and transmission to a mosquito vector is contingent upon ...
Medard Ernest +7 more
doaj +1 more source
Generation of Artificial Gamete and Embryo From Stem Cells in Reproductive Medicine
Frontiers in Bioengineering and Biotechnology, 2020 In addition to the great growing need for assisted reproduction technologies (ART), additional solutions for patients without functional gametes are strongly needed.
Puyao Zhang +3 more
semanticscholar +1 more source
Frontiers in Ecology and Evolution, 2023 Kin selection on one hand, and gamete interactions in post-ejaculatory sexual selection on the other are two major research themes that have risen to prominence over the past half century and have simultaneously developed into central fields of research in evolutionary biology.
Lehtonen, Jussi, Myllymaa, Lauri
openaire +4 more sources
Genetics Selection Evolution, 2004 Many chromosomal rearrangements are detected each year in France on young boars candidates for reproduction. The possible use of these animals requires a good knowledge of the potential effect of the rearrangements on the prolificacy of their mates. This
Yerle Martine, Ducos Alain, Pinton Alain
doaj +1 more source
Frontiers in Cell and Developmental Biology, 2022 Concentrative nucleoside transporters (Cnts) are unidirectional carriers that mediate the energy-costly influx of nucleosides driven by the transmembrane sodium gradient. Cnts are transmembrane proteins that share a common structural organization and are
Houda Ouns Maaroufi +17 more
doaj +1 more source
Prostaglandin E2 affects in vitro maturation of bovine oocytes
Reproductive Biology and Endocrinology, 2020 The role of prostaglandin E2 (PGE2) in the successful resumption of oocyte meiosis and cumulus expansion has been well-documented. However, there remains very little information available on the influence of PGE2 on other processes that occur during ...
Dorota Boruszewska +6 more
doaj +1 more source
Gamete-Competition Models [PDF]
The American Journal of Human Genetics, 2000 The gamete-competition model is an application of the Bradley-Terry model for ranking of sports teams. If allele i of a marker locus is assigned parameter taui>0, then the probability that a parent with heterozygous genotype i/j transmits allele i is Pr(i/j-->)=tau(i)/(tau(i) + tau(j). Mendelian segregation corresponds to the choice tau(i)=1 for all i.
Sinsheimer, Janet S. +2 more
openaire +2 more sources
Frontiers in Physiology, 2023 Obesity affects oocyte mitochondrial functions and reduces oocyte quality and fertility. Obesity may also increase the risk of metabolic disorders in the offspring. Children are likely to follow their parents lifestyle and diet, which also contributes to
Inne Xhonneux +5 more
doaj +1 more source