Parthenogenetic induction
WebThe haploid embryo can arise from an egg cell (gynogenesis) or from a gametophytic cell other than the egg cell (apogamy) or a male gamete (androgenesis). It can also originate … Web5 Aug 2016 · Induction of parthenogenetic haploid plants using gamma irradiated pollens in ‘Hirado Buntan’ pummelo (Citrus grandis [L.] Osbeck) 1. Introduction. Homozygous …
Parthenogenetic induction
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WebBecause parthenogenetic stem cells contain only maternal genes, their use of may reduce the occurrence of immune-mediated rejection following graft transplantation. This …
Web5 Aug 2016 · Induction of parthenogenesis has been successfully applied in production of homozygous lines in fruit trees (Pandey et al., 1990, Froelicher et al., 2007, Aleza et al., 2009). ... To understand the mechanism of parthenogenetic induction by gamma irradiated pollens, pollen viability and pollen tube behavior after pollination with irradiated ... Webthe specificity of the pollen donors, more intensive parthenogenetic induction and development are observed. The relatively highest parthenogenesis frequency was established under the effect of dose 1100 Gy (Fig. 1). Assessment was made on the basis of the obtained DH-R lines of breeding importance.
Web1 Oct 2024 · Switching off diapause in the early egg enables subsequent parthenogenetic transgenesis. The induction of ameiotic parthenogenesis into the genetic toolkit of silkworms allows for the generation of a genetically identical population. Since existing parthenogenetic strains are diapausal and current methods of overcoming diapause are … Web28 Jan 2024 · We have created a fully parthenogenetic line (PL) with more than 85% occurrence and 80% hatching rate via hot water treatment and genetic selection, while …
WebIn this study we used parthenogenetic activation (PA) of porcine embryos to test the hypothesis that a low oxygen concentration (5%) could promote porcine embryo development by activating autophagy. Immunofluorescence staining revealed that low oxygen tension activated autophagy and alleviated oxidative stress in porcine PA embryos.
Web15 Sep 2009 · In this study, we investigated parthenogenetic induction of canine oocytes by electrical stimulation following Ca‐EDTA treatment. Oocyte maturation, parthenogenetic … thb 5 800The production of female offspring by parthenogenesis is referred to as thelytoky (e.g., aphids) while the production of males by parthenogenesis is referred to as arrhenotoky (e.g., bees). When unfertilized eggs develop into both males and females, the phenomenon is called deuterotoky. See more Parthenogenesis is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing). In See more Parthenogenesis can occur without meiosis through mitotic oogenesis. This is called apomictic parthenogenesis. Mature egg cells are produced by mitotic divisions, and these … See more Gynogenesis A form of asexual reproduction related to parthenogenesis is gynogenesis. Here, offspring are … See more • Dawley, Robert M. & Bogart, James P. (1989). Evolution and Ecology of Unisexual Vertebrates. Albany: New York State Museum. See more Some species reproduce exclusively by parthenogenesis (such as the bdelloid rotifers), while others can switch between sexual reproduction and parthenogenesis. This is called facultative parthenogenesis (other terms are cyclical parthenogenesis, heterogamy or … See more Parthenogenesis is seen to occur naturally in aphids, Daphnia, rotifers, nematodes and some other invertebrates, as well as in many plants. Among vertebrates, strict parthenogenesis is … See more • Androgenesis - a form of quasi-sexual reproduction in which a male is the sole source of the nuclear genetic material in the embryo See more thb5beWeb14 May 2024 · Parthenogenetic reproduction of vertebrates is theoretically associated with 2-fold demographic advantage of producing all-female offspring (Maynard-Smith 1978; Otto 2009) and high acquired heterozygosity in the hybrid genome, ... thb 500 to gbpWeb19 Apr 2024 · We conclude that the induction of premeiotic endoreplication in reptiles was independently co-opted at least four times as an essential component of parthenogenetic reproduction and that this mechanism enables the emergence of fertile polyploid lineages within parthenogenetic complexes. Keywords: thb56 totoWebIn vivo induction of parthenogenesis using an irradiated pollen technique provides successful results in melon and accelerates breeding by shortening the time for obtaining 100% homozygous lines. thb5c-s4202Web15 Sep 2009 · In this study, we investigated parthenogenetic induction of canine oocytes by electrical stimulation following Ca‐EDTA treatment. Oocyte maturation, parthenogenetic development, and cleavage rate in canine after various electrical stimulations (1.5, 1.8, 2.1 kV/cm) for 50 μs with single DC pulse following 1 mM Ca‐EDTA treatment were … thb5eWebartificial induction ofparthenogenesis wasfirstobservedin 1847byBoursier fromfemalesilk-worms maintainedundersunexposure,andthenbyTichomirovin unfertilized eggs treated withsulfuricacidin 1886[10],[11].Manyexperimental treatmentshave since beenprovento beeffectiveininducing parthenogenesis, including chemicals,oxygenation,electric pulses, thb56