Induced variation in chiasma frequency in Capsicum annuum L. in response to chemical mutagens
1997
Anis, Mohammad | Sharma, Neeraj (Aligarh Muslim Univ., Aligarh (India). Dept. of Botany)
Cytological analysis was made in treated as well as in control plants. Chiasma frequency per bivalent and per pollen mother cell in M1 plants raised from the seeds of Capsicum annuum treated with EMS, MMS and SA was studied. There was a reduction in chiasma frequency in all the mutagenic treatments compared to their respective control. EMS caused a greater reduction in the frequency of chiasmata than MMS and SA. Chromosomal aberrations like clumping and stickiness among bivalents, formation of multivalents, univalents and fragments were observed at metaphase I. Irregular groupings of chromosomes and laggards were frequently encountered at the anaphase stage of division.
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