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The Journal of Heredity 1990:81(5):347-350
© 1990 The American Genetic Association 81:347-350

research-article

Morphophysiology and Genetics of Induced Mutants Expressed in the M1 Generation in Opium Poppies

N. K. Patra, and S. P. Chauhan

From the Central Institute of Medicinal and Aromatic Plants Lucknow, India

Address reprint requests to Dr. Patra, Central Institute of Medicinal and Aromatic Plants, P.B. No. 1, R.S.M. Nagar, Lucknow-226016, India.

Abstract

The immediate (M1 generation) response to mutagenic treatment was evinced for three induced high alkaloid (morphine)—yielding mutants, namely red-petaled (RP), big-capsulated (BC), and pinnately cleft-leaved (PCL), in Papaver somniferum L. Narrow-sense heritability for various metric traits ranged from 9.20% to 29.06%. The highest heritability estimates were observed for morphine content. The PCL mutant revealed a quasiquantitative nature of inheritance, governed by plural genes, in contrast to the RP and BC mutants wherein the inheritance was governed by single dominant genes in Mendelian fashion. The study emphasizes the use of opium poppy as an ideal system for demonstrating quasiquantitative inheritance.


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