Allelic and haplotypic diversity at the rp1 rust resistance locus of maize

Shavannor M Smith; Anthony J Pryor; Scot H Hulbert

doi:10.1534/genetics.104.029371

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Allelic and haplotypic diversity at the rp1 rust resistance locus of maize

Journal article

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Peer reviewed

Allelic and haplotypic diversity at the rp1 rust resistance locus of maize

Shavannor M Smith, Anthony J Pryor and Scot H Hulbert

Genetics (Austin), Vol.167(4), pp.1939-1947

08/2004

DOI: https://doi.org/10.1534/genetics.104.029371

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https://hdl.handle.net/2376/114476

PMCID: PMC1471013

PMID: 15342531

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Abstract

Zea mays - genetics

Molecular Sequence Data

Plant Diseases - microbiology

Phylogeny

DNA Primers

Immunity, Innate

Sequence Homology, Nucleic Acid

Genetic Variation

Plant Proteins - genetics

Sequence Alignment

Zea mays - classification

Base Sequence

Polymerase Chain Reaction

The maize Rp1 rust resistance locus is a complex consisting of a family of closely related resistance genes. The number of Rp1 paralogs in different maize lines (haplotypes) varied from a single gene in some stocks of the inbred A188 to >50 genes in haplotypes carrying the Rp1-A and Rp1-H specificities. The sequences of paralogs in unrelated haplotypes differ, indicating that the genetic diversity of Rp1-related genes is extremely broad in maize. Two unrelated haplotypes with five or nine paralogs had identical resistance phenotypes (Rp1-D) encoded in genes that differed by three nucleotides resulting in a single amino acid substitution. Genes in some haplotypes are more similar to each other than to any of the genes in other haplotypes indicating that they are evolving in a concerted fashion.

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Title: Allelic and haplotypic diversity at the rp1 rust resistance locus of maize
Creators: Shavannor M Smith - Department of Plant Pathology, Kansas State University, Manhattan, Kansas 66506, USA
Anthony J Pryor
Scot H Hulbert
Publication Details: Genetics (Austin), Vol.167(4), pp.1939-1947
Academic Unit: Plant Pathology, Department of
Publisher: United States
Identifiers: 99900547927701842
Language: English
Resource Type: Journal article