Contrasting complexity of two rust resistance loci in flax. | Zendy

Jim Ellis | Zendy; Gregory J. Lawrence | Zendy; E. Jean Finnegan | Zendy; Peter Anderson | Zendy

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Contrasting complexity of two rust resistance loci in flax.

Author(s) -

Jim Ellis,

Gregory J. Lawrence,

E. Jean Finnegan,

Peter Anderson

Publication year - 1995

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.92.10.4185

Subject(s) - locus (genetics) , genetics , biology , gene , linum , allele , botany

DNA probes from the L6 rust resistance gene of flax (Linum usitatissimum) hybridize to resistance genes at the unlinked M locus, indicating sequence similarities between genes at the two loci. Genetic and molecular data indicate that the L locus is simple and contains a single gene with 13 alleles and that the M locus is complex and contains a tandem array of genes of similar sequence. Thus the evolution of these two related loci has been different. The consequence of the contrasting structures of the L and M loci on the evolution of different rust resistance specificities can now be investigated at the molecular level

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