Results 41 to 50 of about 2,973 (193)
Niche partitioning among sexual and unisexual Ambystoma salamanders
Ecosphere, 2016 Organisms that have ecologically similar sexual and asexual forms present an evolutionary puzzle, as theory predicts that eventually one form should eliminate the other.
Katherine R. Greenwald +2 more
doaj +1 more source
Premiers résultats de la culture "in vitro" d'ovules non fécondés de cotonnier (Gossypium hirsutum L.) [PDF]
, 1984 L'haploidisation par gynogénèse a été tentée sur Gossypium hirsutum. Après 2 a 3 mois de culture, des embryons à divers stades ont été observés dans les cavités ovulaires.
Pallarès, P.
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ALLOGYOGENETIC PROGENY ARE PRODUCED FROM A HYBRID ABALONE CROSS OF FEMALE HALIOTIS DIVERSICOLOR AND MALE HALIOTIS DISCUS DISCUS [PDF]
, 2010 Interspecific hybrid families of female Haliotis diversicolor X male H. discus discus were produced and analyzed using amplified fragment length polymorphism (AFLP) technology to reveal the genetic makeup of F1 progenies. The survival rates of the hybrid
Cai, Mingyi +7 more
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Gynogenesis in Drosophila melanogaster.
The Japanese Journal of Genetics, 1984 A unique male sterile mutant of Drosophila melanogaster, ms(3)K81 (3-91.3), has been discovered. The male homozygous for ms(3)K81 produces those abnormal sperm which are defective in syngamy but are still capable of activating eggs. The eggs activated by these sperm usually produce haploid embryos that die before hatching.
openaire +2 more sources
Овощи России, 2022 Relevance. The induction of gynogenic development of the culture of unpollinated ovules of Cucumis sativus L., as a part of solid nutrient media agar-agar or Phytagel™ are used as a gelling agent.
S. N. Belov
doaj +1 more source
Techniques of producing monosex or sterile population of fish for aquaculture -- a review of selected literature [PDF]
, 1993 The need to develop techniques that can make the male grow faster in many species of fish as well as the female in some other species cannot be over-emphasized.
Aluko, P.O.
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Овощи России, 2015 The role of plant extracts in the process of induction of embryogenic structures and its following development in plants is revealed. Thus, the addition in the culture medium of the extracts diluted in DMSO increases the rate of gynoand androgenesis on 2.
R. N. Kirakosyan +2 more
doaj +1 more source
Evolutionary Applications, 2020 Wild, asexual, vertebrate hybrids have many characteristics that make them good model systems for studying how genomes evolve and epigenetic modifications influence animal physiology.
Anne C. Dalziel +6 more
doaj +1 more source
Овощи России, 2022 Relevance. To create an effective technology for obtaining doubled haploids (DH-technology) of zucchini in unpollinatedseedpod culture in vitro it is necessary to select the optimal values of many factors, the degree of influence of each of which on ...
A. S. Ermolaev, E. A. Domblides
doaj +1 more source
Differences in ploidy levels of interploidal crosses progenies between diploids and tetraploid somatic hybrids in citrus : S02P19 [PDF]
, 2012 One of the main objectives of citrus breeders is to obtain sterile mandarins that produce seedless fruits. Triploids are a response to these criteria. A way for triploid creation is sexual crosses between diploids and tetraploids.
Froelicher, Yann +4 more
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