Symbiotic interactions between chickpea (Cicer arietinum L.) genotypes and Mesorhizobium strains

Gunnabo, A H and van Heerwaarden, J and Geurts, R and Wolde-meskel, E and Degefu, T and Giller, K E (2020) Symbiotic interactions between chickpea (Cicer arietinum L.) genotypes and Mesorhizobium strains. Symbiosis (TSI). ISSN 0334-5114

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Abstract

Legume genotype (GL) x rhizobium genotype (GR) interaction in chickpea was studied using a genetically diverse set of accessions and rhizobium strains in modified Leonard Jars. A subset of effective GL x GR combinations was subsequently evaluated in a pot experiment to identify combinations of chickpea genotypes and rhizobium strains with stable and superior symbiotic performance. A linear mixed model was employed to analyse the occurrence of GL x GR interaction and an additive main effects and multiplicative interaction (AMMI) model was used to study patterns in the performance of genotype-strain combinations.We found statistically significant interaction in jars in terms of symbiotic effectiveness that was entirely due to the inclusion of one of the genotypes, ICC6263. No interaction was found in a subsequent pot experiment. The presence of two genetic groups (Kabuli and Desi genepools) did not affect interaction with Mesorhizobium strains. With the exception of a negative interaction with genotype ICC6263 in the jar experiment, the type strain Mesorhizobium ciceri LMG 14989 outperformed or equalled other strains on all chickpea genotypes in both jar and pot experiments. Similar to earlier reports in common bean, our results suggest that efforts to findmore effective strains may be more rewarding than aiming for identification of superior combinations of strains and genotypes.

Item Type:	Article
Divisions:	Research Program : East & Southern Africa
CRP:	UNSPECIFIED
Uncontrolled Keywords:	AMMI, Genotype-strain combinations, Rhizobiumgenotypes, Symbiotic effectiveness
Subjects:	Mandate crops > Chickpea Others > Genetics and Genomics Others > Legume Crops
Depositing User:	Mr Arun S
Date Deposited:	15 Nov 2020 03:46
Last Modified:	15 Nov 2020 03:46
URI:	http://oar.icrisat.org/id/eprint/11654
Official URL:	https://doi.org/10.1007/s13199-020-00724-6
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	We thank the Bill & Melinda Gates Foundation for partnering in this research through a grant to Wageningen University to support the project N2Africa: Putting Nitrogen Fixation to Work for Smallholder Farmers in Africa
Links:	Google Scholar

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