The zygotes undergo post-fertilization transformation into motile ookinetes which traverse the midgut epithelium and develop into oocysts resulting in the production of infective sporozoites.
Transformation - Transforms the user.
Precocious carpelloid growth was observed in Line 3 compared to OR, suggesting that Line 3 contains traits leading to precocious parthenocarpy and or carpelloid transformation well before fertilization.
After fertilization, the zygote undergoes a series of transformations that bring it closer to the essential organization of the parents.
Transcription of these genes appears to be initiated 8 10 h post-fertilization, and their expression remains active until the transformation to oocyst (Yuda et al., 1999b; 2001,).
After gamete fusion and fertilization, the zygote undergoes meiosis and begins a major transformation into a motile ookinete, which is completed within 24 hr.
Based on field observation data, simulation results clearly showed peaks of various N transformation rates appeared within 2 ~ 3 days after each fertilization.
We also discussed the possibility of sperm-mediated transformation as a mechanism, whereby sperm absorb foreign DNA fragments, given that these fishes employ external fertilization and have overlapping ranges [ 16].
Gametogenesis and fertilization in the P ama1 - gap45 mutant were unaffected, but zygotes remained spherical and failed entirely to initiate transformation into ookinetes as judged by light microscopy.
Facultative parthenocarpy is widely present in C. annuum genotypes, and the absence of fertilization allows the parthenocarpic potential to be expressed, and at the same time induces carpelloid proliferation, possibly following the homeotic transformation of abnormal ovules.
Fertilization is external.
