A Case of Synaptic Mutant in Erigeron karvinskianus DC. (Latin American Fleabane)

Santosh Bala; Beena Kaushal; Henna Goyal; Raghbir C. Gupta

doi:10.1508/cytologia.75.299

A Case of Synaptic Mutant in Erigeron karvinskianus DC. (Latin American Fleabane)

Santosh Bala, Beena Kaushal, Henna Goyal, Raghbir C. Gupta

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Keywords: Asteraceae, Erigeron karvinskianus, Meiosis, Synaptic mutant

JOURNAL OPEN ACCESS

2010 Volume 75 Issue 3 Pages 299-304

DOI https://doi.org/10.1508/cytologia.75.299

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Abstract

Failure of chromosome pairing was observed in all the presently investigated natural populations of Erigeron karvinskianus (2n=36). All 4 populations were observed with a different range of univalents besides bivalents at diakinesis and metaphase I. The presence of univalents bound with various other meiotic irregularities, such as laggards and chromatin bridges, which further lead to abnormal microsporogenesis. Pollen sterility was found to be high.

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