Indian Society of Genetics & Plant Breeding

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ANALYSIS OF DIVERGENCE IN SOME SELF-COMPATIBLE FORMS OF BRASSICA CAMPESTRIS VAR. BROWN SARSON

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AN understanding of the evolutionary forces leading to divergence between
populations should be supplemented with a quantitative assessment of the
degree of diversification between individual populations or groups of populations to follow the evolutionary trend. Such a measure of divergence would
also help to choose parents for hybridization either to exploit heterosis or to
select desirable segregates, since it is known that genetically diverse parents
are likely to yield, in the progeny of their crosses, desirable recombinants.
The present methods of assessing divergence are based mostly on geographical
diversity, without any quantitative measure of the genetic divergence. Powerful
statistical techniques using the concept of statistical distance utilizing multiple
measurements, have been developed since 1928 (Mahalanobis, 1928, 1936;
Hotelling, 1931; Wilks, 1932; Fisher, 1936; Rao, 1948, 1962, 1950; Anderson,
1958) and used extensively in anthropometry and recently in biology at interand intra-specific levels (Nair and Mukherjee, 1960; Murty, Murty and
Pavate, 1962).
  

Info

Year: 1966
Volume: 26
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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