Phenotypic, genotypic and genetic divergence found in 48 newly collected Malaysian accessions of Jatropha curcas L.

Abstract

Physic nut, Jatropha curcas L. is an important bio-fuel crop. The present study was conducted to determine the extent of genetic variation and relationship among 48 J. curcas accessions of from Malaysia using 14 morphological traits during 2009-2010. In respect of all traits, there were highly significant differences among the accessions. The phenotypic coefficient of variation was the highest for oil yield per ha followed by total no. of seed per plant and seed yield. Similarly, the genotypic coefficient of variation was the highest for seed yield followed by oil yield per ha and total number of seeds per plant. Broad sense heritability was high in general and exceeded 63.5% for all the traits studied. The percentages of genetic advance was higher (>70%) for total number of seeds per plant and seed yield. Morphological traits viz. total number of seeds per plant, total number of branches per plant, number of primary branches per plant and seed yields per ha exhibited a high genotypic coefficient of variation, heritability and genetic advance. Seed yield was significantly (p≤ 0.05) and positively correlated with plant height, total branches, leaf greenish, total number of seeds, number of fruits and oil yield. Based on UPGMA cluster and principal component analyses, the accessions, D-01-09 and B-03-02 (grouped into a single cluster) had above average seed yield, oil yield, number of fruits, total number of seeds, leaf greenish, plant height and primary branch compared to other accessions. For the improvement of J. curcas, two accessions (D-01-09 and B-03-02) could be used as parents and required to be hybridized with the accessions (

Study of genetic variation of eggplant cultivars by using RAPD-PCR molecular markers and the relationship with Phomopsis blight disease reaction

“…To obtain the maximum heterosis, genotypes with a greater genetic distance can be used as parents in crossing programs. Similar results have been reported by Latif et al (2013), Rafii et al (2012), and Shabanimofrad et al (2013 Genetic identity between varieties was observed for the 3 primers, ranging from 0.6891 to 0.9500. A comparatively high genetic identity (0.9500) was found for the ISD 006 and Ishurdi L variety pair and the lowest was observed between ISD 006 and Dohazari G (0.6891).…”

Genetic structure from the oldest Jatropha germplasm bank of Brazil and contribution for the genetic improvement

“…The phenotypic variations observed can be a result of environmental effect, such as the constant water deficits and high temperatures that have an effect over the development and reproduction of jatropha (Laviola et al 2010. Shabanimofrad et al 2013, as well as epigenetic effects which may play a crucial role in the adaptive evolution to changing environment (Sahu et al 2013).…”

Morphometric characterization of Jatropha curcas germplasm of North-East India

“…The overall grouping pattern of the populations in PCA was in accordance with the major clades of the UPGMA dendrogram. It has been previously reported that the crossing of populations from the clusters, which exhibit maximum inter-cluster distance and high mean value of agronomic traits, would result in production of more divergent trees (Kaushik et al, 2007;Shabanimofrad et al, 2013;Srivastava et al, 2011). Both the analyses delineated that the four populations in cluster III, IITJC19, IITJC21, IITJC22 and IITJC24, have maintained maximum inter-cluster distance from other J. curcas populations.…”

“…ANOVA among J. curcas accessions for different morphometric characters have previously been reported (Shabanimofrad et al, 2013;Sunil et al, 2012).…”