Meiotic abnormalities affect genetic constitution and pollen viability in dicots from Indian cold deserts
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چکیده
منابع مشابه
Contributions of classical and molecular cytogenetic in meiotic analysis and pollen viability for plant breeding.
The analysis of meiotic behavior has been widely used in the study of plants as they provide relevant information about the viability of a species. Meiosis boasts a host of highly conserved events and changes in genes that control these events will give rise to irregularities that can alter the normal course of meiosis and may lead to complete sterility of the plant. The recombination of genes ...
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The mean diameter of viable pollen grains is approximately 13 μm greater than the mean diameter of inviable grains in Mimulus guttatus. We show that this difference is large enough to be detected by particle counters and that these machines can be used to obtain a rapid estimate of pollen viability. While requiring a separate calibration, a size-based statistic is also strongly correlated with ...
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Reproductive studies were carried out on Brazilian accessions of ipecac, Cephaelis ipecacuanha. Meiotic behavior was studied using the squashing technique. Irregular chromosome segregation in meiosis I and II, many sets of chromosomes in telophase II, micronuclei, incorrect cytoplasm division, incomplete cytokinesis and anomalous post-meiotic products, mainly polyads, were observed. The mean me...
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ژورنال
عنوان ژورنال: BMC Plant Biology
سال: 2019
ISSN: 1471-2229
DOI: 10.1186/s12870-018-1596-7