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Inheritance of resistance to flax wilt (Fusarium oxysporum f.sp. lini Schlecht) in a doubled haploid population of Linum usitatissimum
journal contribution
posted on 2023-05-16, 11:21 authored by Spielmeyer, W, Lagudah, ES, Neville MendhamNeville Mendham, Green, AGThe inheritance of resistance to fusarium wilt (Fusarium oxysporum f.sp. lini) was investigated in Linum usitatissimum as a first step towards gaining an understanding of the molecular genetics of the disease and developing a procedure for marker-assisted selection. A recombinant doubled haploid (DH) population was derived from the haploid component of polyembryonic F 2 seeds originating from a cross between a wilt resistant, twinning Linola(TM*) line CRZY8/RA91 and the wilt susceptible Australian flax cultivar Glenelg. The segregation of resistance was studied in 143 DH lines under glasshouse and field conditions. Most of the phenotypic variation was attributable to the segregation of two independent genes with additive effects. Minor resistance genes may have also contributed by modifying the resistance response. A glasshouse screening method of DH lines proved a reliable indicator of field resistance to fusarium wilt.
History
Publication title
Euphytica-Netherlands Journal of Plant BreedingVolume
101Pagination
287-291ISSN
0014-2336Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Kluwer Academic PublishersPlace of publication
Wageningen, NetherlandsRepository Status
- Restricted