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GENETIC DIVERSITY IN
RADISH GERMPLASM FOR MORPHOLOGICAL TRAITS AND SEED STORAGE
PROTEINS
SHAKEEL AHMAD JATOI1*, ASIF
JAVAID1, MUHAMMAD IQBAL2, OBAID ULLAH SAYAL2, M. SHAHID MASOOD1 AND SADAR
UDDIN SIDDIQUI1
Abstract:
Genetic variation
of forty-nine local and exotic radish genotypes including two checks was
studied for morphological traits and seed storage protein
electrophoresis using sodium dodecylsulphate polyacrylamide gel
electrophoresis (SDS-PAGE) markers. A high variation in germplasm for
root shape, root length, root colour (internal and external), flesh
texture and root type was observed. Among these genotypes, the genetic
variation was apparent for most of the characters like plant biomass,
root weight, leaf length, root length and root diameter that indicated
the potential for crop improvement in these traits through simple
selection. Exotic germplasm exhibited higher variation for plant
biomass, root weight and root length which could be utilized through
breeding programme. Cluster analysis on the basis of genetic diversity
for seven quantitative traits resulted into four clusters. No clustering
was found on the basis of origin. Low level of variance was observed for
SDS-PAGE electrophoresis that suggested acquisition of more germplasm.
On the basis of high yield and crispy root texture some genotypes
(10076, 10362, 10429, 10658, 10662 and 10667) were identified for
further testing under wide range of agro-ecological conditions.
1National Agricultural Research Centre, Islamabad-45500, Pakistan
2Faculty of Agriculture, Gomal University, D.I.Khan, Pakistan
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