Symbiosis Genes: Organisation and Diversity

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Ecology and Evolution of Rhizobia

Abstract

With only specific exceptions, almost all the symbiotic rhizobia have a set of symbiosis genes that include nodulation- and N2-fixing-related genes. Organisation of the symbiosis genes and their roles in the synthesis of Nod factors (LCOs) and nitrogen fixation are first illustrated and compared. Then the diversity and phylogeny of the nodulation gene nodC are discussed in detail in various rhizobia with narrow or broad host ranges. The relationship between the nodC phylogeny and the rhizobial host range is explored in detail.

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Wang, E.T., Young, J.P.W. (2019). Symbiosis Genes: Organisation and Diversity. In: Ecology and Evolution of Rhizobia. Springer, Singapore. https://doi.org/10.1007/978-981-32-9555-1_5

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