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Multiple spindle a meiotic irregularity in Clarkia exilis



Multiple spindle a meiotic irregularity in Clarkia exilis



Amer Jour Bot 49(5): 536-539



"Multiple spindle" is a meiotic irregularity in which more than one spindle occurs in a high proportion of first-metaphase cells. Abnormal telophase segregations, the occurrence of micronuclei with the microspore nuclei, and reduced pollen fertility are further manifestations of this irregularity. Reciprocal hybrids between normal and multiple spindle are normal. Segregation data from F2 and F3 progenies indicate that multiple spindle is inherited as a single recessive gene, m. The mm genotype has persisted at a high frequency (about 15%) for at least 7 years in the natural population from which cultures were derived.

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Accession: 025044798

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DOI: 10.2307/2439426


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