Summary
Pachytene analysis was undertaken in 4 japonica-indica rice hybrids. In all these hybrids, pairing was exceedingly abnormal lending evidence for structural hybridity. Earlier investigators who analysed metaphase-I and later stages of meiosis concluded that sterility is due to genic causes. The present investigation clearly points out the chromosomal causes of sterility and makes possible a reinterpretation of (1) non-recovery of recombinant phenotypes and (2) the occurrence of albina and other mutations in hybrid progenies.
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Shastry, S.V.S., Misra, R.N. Pachytene analysis in oryza . Chromosoma 12, 248–271 (1961). https://doi.org/10.1007/BF00328922
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DOI: https://doi.org/10.1007/BF00328922