Comparison and evolutionary analysis of
                    Brassica
                    nucleotide binding site leucine rich repeat (NLR) genes and importance for disease resistance breeding

Yueqi Zhang; David Edwards; Jacqueline Batley

doi:10.1002/tpg2.20060

journal article Open Access Nov 11, 2020

Comparison and evolutionary analysis of Brassica nucleotide binding site leucine rich repeat (NLR) genes and importance for disease resistance breeding

Yueqi Zhang

David Edwards

Jacqueline Batley

The Plant Genome Vol. 14 No. 1 · Wiley

View at Publisher Save 10.1002/tpg2.20060

Abstract

Abstract

The
Brassica
genus contains many agriculturally significant oilseed and vegetable crops, however the crop yield is threatened by a range of fungal and bacterial pathogens. Nucleotide Binding Site Leucine Rich Repeat (NLR) genes play important roles in plant innate immunity. The evolution of NLR genes is influenced by genomic processes and pathogen selection. At the whole genome level, whole genome duplications (WGDs) generate abundant gene copies, most of which are lost during genome fractionation. At sub‐genomic levels, some retained copies undergo duplication forming clusters which facilitate rapid evolution through recombination. The number, distribution and genetic variations of the NLR genes vary among
Brassica
species and within populations suggesting differential selection pressure exerted by pathogen populations throughout the evolutionary history. A study of the evolution of disease resistance genes in agriculturally important plants such as
Brassicas
helps gain insights into their function and inform the identification of resistance genes for breeding of resistant lines.

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Details

Published: Nov 11, 2020
Vol/Issue: 14(1)
License: View

Authors

Y

Yueqi Zhang

School of Biological Sciences University of Western Australia Perth WA Australia

D

David Edwards

School of Biological Sciences University of Western Australia Perth WA Australia

J

Jacqueline Batley

School of Biological Sciences University of Western Australia Perth WA Australia

Cite This Article

Yueqi Zhang, David Edwards, Jacqueline Batley (2020). Comparison and evolutionary analysis of Brassica nucleotide binding site leucine rich repeat (NLR) genes and importance for disease resistance breeding. The Plant Genome, 14(1). https://doi.org/10.1002/tpg2.20060

Comparison and evolutionary analysis of Brassica nucleotide binding site leucine rich repeat (NLR) genes and importance for disease resistance breeding

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