Evaluation of world castor (Ricinus communis L.) germplasm for resistance to Fusarium wilt (Fusarium oxysporum f. sp. ricini)

Anjani, K.; Raoof, M. A.; Desai, Avani

doi:10.1007/s10658-014-0413-x

Cited by 25 publications

(9 citation statements)

References 6 publications

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“…Hence, DPC 23 was suggested as the female parent in yield improvement programme. Our results are in agreement with Anjani et al (2014) who reported RG 297 as high yielder with enhanced resistance to Fusarium wilt. Each genotype was unique in their character and none of them were commonly found in all the four components.…”

Section: Discussionsupporting

confidence: 94%

Morphometric description and genetic diversity in 208 monoecious and pistillate castor (Ricinus communis L.) genotypes: An unexplored industrial oil crop in Semi-arid tropics

Deepika

Venkatachalam

Yuvaraja

et al. 2022

Preprint

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It is axiomatic that castor (Ricinus communis L.) is an industrially important oil crop with wide use. Augmenting oil yield from seeds beyond a certain limit is challenging and cumbersome. Hence, it is imperative to improve the seed yield by breeding elite hybrids/varieties. Morphological description of 208 castor genotypic population for eight qualitative was carried out and considerable polymorphism existed among the collection. Maximum genotypes were R2 and R3 morphotypes because of the dominant nature of red stem color and blooming nature. K means clustering separated the genotypes into 20 clusters with Cluster 4 and 20 as well separated one. Cluster 4 could serve as female parent since the cluster was composed of pistillate lines and cluster 20 as male parent during hybridization. Path coefficient analysis supported the correlation coefficient that effective spike length and capsule weight showed high positive direct effects with seed yield. Also, the analysis revealed primary spike length and effective length of primary spike as the variables with the largest weightage. The first four components accounted for 75.95% of the variation cumulatively. The components were rotated with varimax rotation and the variability contribution was similar to the normal (76%). High communality values specified the reliability of the studied variables in explaining the total variation. Considering both cluster analysis and PCA, the genotypes SKP 84, DPC 19, JP 65, JC 3, JC 26, RG 27, ICS 210 and RG 3477 possessed immense value as parents in breeding varieties/hybrids to meet out the global oil demand.

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Section: Discussionsupporting

confidence: 94%

Morphometric description and genetic diversity in 208 monoecious and pistillate castor (Ricinus communis L.) genotypes: An unexplored industrial oil crop in Semi-arid tropics

Deepika

Venkatachalam

Yuvaraja

et al. 2022

Preprint

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“…In addition to drought, land salinization represents an important environmental constraint that reduces crop growth and yield [20]. Castor bean can grow on marginal lands, which are mostly located in arid and semiarid regions where soil salinity is too high for most common food crops [68,69]. Castor bean's salt tolerance seems to be related to its roots marked ability to limit Na + uptake, being selective in K + uptake, excluding it from leaf blades and maintaining relatively high K + concentrations in leaves [19].…”

Section: Salt Resistancementioning

confidence: 99%

Biofuel Production with Castor Bean: A Win–Win Strategy for Marginal Land

et al. 2020

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The urgency to reduce resource depletion and waste production is expected to lead to an economy based on renewable resources. Biofuels, for instance, are a great green alternative to fossil fuel, but they are currently derived from edible vegetable oils such as soybean, palm, and sunflower. Concerns have been raised about the social–economic implication and ecological impacts of biodiesel production. Cultivating new lands as biodiesel feedstock rather than food supply, with the consequent increase in food prices, leads to so-called indirect land-use change (ILUC). Establishing bioenergy crops with phytoremediation ability on contaminated soils offers multiple benefits such as improving soil properties and ecosystem services, decreasing soil erosion, and diminishing the dispersion of potentially toxic elements (PTEs) into the environment. Castor bean is an unpalatable, high-biomass plant, and it has been widely demonstrated to possess phytoremediation capability for several PTEs. Castor bean can grow on marginal lands not suitable for food crops, has multiple uses as a raw material, and is already used in biodiesel production. These characteristics make it perfect for sustainable biodiesel production. Linking biofuel production with environmental remediation can be considered a win–win strategy.

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“…'Host plant resistance' is widely recognized as the least expensive, easiest, safest and one of the most effective methods (Agrios 2005). In the past, a large number of castor lines were screened and several resistant lines (germplasm and improved lines) were identified (Prasad and Bhatnagar 1981;Raoof and Rao 1996;Puspavathi et al 1998;Anjani et al 2004;). These resistance sources can act as potential donors for developing Fusarium wilt resistant cultivars in castor via marker-assisted selection (MAS) using molecular markers.…”

Section: Introductionmentioning

confidence: 99%

Genomic regions associated with resistance to Fusarium wilt in castor identified through linkage and association mapping approaches

Shaw

Shaik

Prasad

et al. 2022

Genome

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Fusarium wilt caused by Fusarium oxysporum f. sp ricini is the most destructive disease in castor. Host plant resistance is the best strategy for management of wilt problem. Identification of molecular markers linked to wilt resistance will enhance the efficiency and effectiveness of breeding for wilt resistance. In the present study, mapping of genomic regions linked to wilt resistance was attempted using a bi-parental population of 185 F6- RILs and a genetically diverse panel of 300 germplasm accessions. Quantitative trait loci (QTL) analysis performed using a linkage map consisting of 1,090 SNP markers identified a major QTL on chromosome-7 with LOD score of 18.7, which explained 44 per cent of phenotypic variance. The association mapping performed using genotypic data from 3,465 SNP loci revealed 69 significant associations (p <1×10-4) for wilt resistance. The phenotypic variance explained by the individual SNPs ranged from 0.063 to 0.210. The QTL detected in the bi-parental mapping population was not identified in the association analysis. Thus, the results of this study indicate the possibility of vast gene diversity for Fusarium wilt resistance in castor.

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Evaluation of world castor (Ricinus communis L.) germplasm for resistance to Fusarium wilt (Fusarium oxysporum f. sp. ricini)

Cited by 25 publications

References 6 publications

Morphometric description and genetic diversity in 208 monoecious and pistillate castor (Ricinus communis L.) genotypes: An unexplored industrial oil crop in Semi-arid tropics

Morphometric description and genetic diversity in 208 monoecious and pistillate castor (Ricinus communis L.) genotypes: An unexplored industrial oil crop in Semi-arid tropics

Biofuel Production with Castor Bean: A Win–Win Strategy for Marginal Land

Genomic regions associated with resistance to Fusarium wilt in castor identified through linkage and association mapping approaches

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