2014
DOI: 10.1508/cytologia.79.49
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The Influence of Terminal Heat Stress on Meiosis Abnormalities in Pollen Mother Cells of Wheat

Abstract: SummaryTo study the effects of high temperature on the meiosis of pollen mother cells (PMCs) and to determine their relationship with grain set, two in situ experiments were conducted between 2010 and 2012 on four wheat cultivars, Kauz, Montana, M6 and Chamran, under normal (normal cultivation) and terminal heat stress (late cultivation) conditions. Due to the delay in cultivation for the cultivars under stress conditions, their flowering stage faced heat stress at the end of the growing season, and therefor… Show more

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Cited by 46 publications
(33 citation statements)
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“…In Arabidopsis thaliana, cold stress induces male meiotic restitution by specifically interfering with the RMAs that underpin biogenesis of the second cell wall at the end of MII, and hence yields dyads and triads 7 . Similarly, in wheat and poplar, MII cell wall formation is affected by heat, indicating that the process of male meiotic cytokinesis is highly temperature-sensitive 10,11 . In rose, heat-induced meiotic restitution is caused by alterations in MII spindle organization.…”
mentioning
confidence: 99%
“…In Arabidopsis thaliana, cold stress induces male meiotic restitution by specifically interfering with the RMAs that underpin biogenesis of the second cell wall at the end of MII, and hence yields dyads and triads 7 . Similarly, in wheat and poplar, MII cell wall formation is affected by heat, indicating that the process of male meiotic cytokinesis is highly temperature-sensitive 10,11 . In rose, heat-induced meiotic restitution is caused by alterations in MII spindle organization.…”
mentioning
confidence: 99%
“…Cytomixis has been reported in different tissues of many flowering plants, including the Lamiaceae family (Ordóñez et al 2002). This process may have serious genetic consequences, such as the formation of pollen mother cells with anomalous chromosome numbers (Omidi et al 2014), abnormal microspores clusters (triads, pentads, hexads) and pollen sterility (Singhal and Kumar 2008, Massoud et al 2011, Nouroozi et al 2011, Singhal and Kaur 2011.…”
Section: Resultsmentioning
confidence: 99%
“…In a study with wheat, OMIDI et al (2014) noted that varieties had the lowest amounts of abnormalities in normal environmental conditions. Several varieties had significant increases in meiotic changes as the temperature increased.…”
Section: Analysis Of Variance Of the 2014 And 2015mentioning
confidence: 99%