Indian Society of Genetics & Plant Breeding

INTRASPECIFIC NUCLEAR DNA VARIATION IN PIGEONPEA (CAJANUS CAJAN (L.) MILLSP.) AND PEA (PISUM SATIVUM L.)

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The nuclear DNA content was estimated in 13 varieties each of pigeonpea (Cajanus cajan
(L.) MiIIsp.) and pea (Pisum sativum 1.)using FueIgen cytophotometry. Data were recorded
on 25 2C and 4C nuclei in each accession with two replications. Significant differences
were found among the varieties of the same species. DNA density (DNA content/nuclear
area) increased with increase in DNA content. 4C nuclei exhibited higher density than 2C
nuclei in each case. The 2C DNA values computed from 4Cnuclei were slightly lower than
those estimated from 2C nuclei directly.
  

Keywords: Pigeonpea, pea, intraspecific variation, nuclear DNA content.

Info

Year: 1991
Volume: 51
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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