Meiosis is the least explored stage for thermotolerance in wheat. We evaluated impact of 5 d moderate transient daily heat stress during meiosis main stem spike on physiological and grain yield traits 30 diverse wheat cultivars which vary widely tolerance sensitivity. found that a event had lasting impacts plant growth reproduction heat-sensitive, but not heat-tolerant, cultivars. Heat-tolerant...

Bread wheat is an allohexaploid that behaves as a diploid during meiosis, the cell division process to produce gametes occurring in organisms with sexual reproduction. Knowledge of mechanisms implicated meiosis can contribute facilitating transfer desirable traits from related species into crop like framework breeding. It particularly interesting shed light on controlling correct pairing betwee...

A MODEL FOR CHROMOSOME BEHAVIOR DURING MITOSIS AND MEIOSIS .................................... .. The Mitotic Cell Cycle .....................................................................•............................................ Interphase ........................................................................................................................................ . Metaphase ...

A major hindrance in studying human meiosis has been the inability to assess all four products of female meiosis. Overcoming this hurdle, a new study discovers a high incidence of non-canonical 'reverse meiosis' and a new form of meiotic drive.

Recent studies on the regulation of meiosis have uncovered new roles for old acquaintances: the polo-like kinase Cdc5 has been found to dictate proper kinetochore orientation during meiosis I, while the FEAR pathway is essential for some, but not all, aspects of meiosis I exit.

Timely progression of the meiotic cell cycle and synchronized establishment male meiosis in anthers are key to ascertaining plant fertility. With discovery novel regulators cycle, mechanisms underlying initiation appear be more complex than previously thought, requiring conjunctive action cyclins, cyclin-dependent kinases, transcription factors, protein–protein interactions, several signaling c...

In budding yeast, meiotic commitment is the irreversible continuation of the developmental path of meiosis. After reaching meiotic commitment, cells finish meiosis and gametogenesis, even in the absence of the meiosis-inducing signal. In contrast, if the meiosis-inducing signal is removed and the mitosis-inducing signal is provided prior to reaching meiotic commitment, cells exit meiosis and re...

Sexual eukaryotes generate gametes using a specialized cell division called meiosis that serves both to halve the number of chromosomes and to reshuffle genetic variation present in the parent. The nature and mechanism of the meiotic cell division in plants and its effect on genetic variation are reviewed here. As flowers are the site of meiosis and fertilization in angiosperms, meiotic control...