gynogenesis การใช้

• The Amazon molly, ( pictured ), reproduces by gynogenesis.
• A special case of parthenogenesis is gynogenesis.
• The triploid individual reproduces by gynogenesis, a process triggered by the presence of sperm but not involving gametic fusion.
• Many other cases of obligate parthenogenesis ( or gynogenesis ) are found among polyploids and hybrids where the chromosomes cannot pair for meiosis.
• The " in vitro " methods include gynogenesis ( ovary and flower culture ) and androgenesis ( anther and microspore culture ).
• Gynogenesis is a form of asexual reproduction in which female eggs are activated by male sperm, but no male genetic material is contributed to offspring.
• Gynogenesis and pseudogamy are closely related phenomena in which a sperm or pollen triggers the development of the egg cell into an embryo but makes no genetic contribution to the embryo.
• The unisexual females often look like blue-spotted salamanders but have hybrid genomes then discard the sperm genome and develop asexually ( i . e ., gynogenesis, with premeiotic doubling ); however, they may incorporate the genome from the sperm into the resulting offspring.