RECENTLY, attempts have been made to investigate the chromosomes of Oryza sp. in greater detail through pachytene analysis. This method has also opened up a new line of research for a precise understanding of the cytogenetics of the genus Oryza. A similar examination has been carried out in Oryza perennis Moench, which is believed to have contributed largely in the evolutionary process of cultivated rices with a view to elucidating the nature of the ancestral chromosome complement of this genus.
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SEN, S. Pachytene Chromosomes of Oryza perennis Moench from Cambodia. Nature 202, 1362–1363 (1964). https://doi.org/10.1038/2021362a0
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