Testing Wheat Seedlings for Resistance to Crown Rot Caused by<i>Fusarium graminearum</i>Group 1

Willdermuth, G. B.; Mcnamara, R. B.

doi:10.1094/pd-78-0949

Cited by 111 publications

(107 citation statements)

References 0 publications

Supporting

Mentioning

100

Contrasting

Unclassified

Order By: Relevance

“…Breeding for crown rot resistance is difficult due to time-consuming, technically laborious and expensive methods for phenotypic screening (Wildermuth and McNamara 1994;Wildermuth et al 2001) in which disease expression is strongly influenced by environmental factors (Beddis and Burgess 1992). Selection for this trait would be greatly assisted by the development of closely linked molecular markers suitable for deployment in a marker assisted selection (MAS) program.…”

Section: Introductionmentioning

confidence: 99%

“…2-49 is an important breeding line that possesses both seedling and adult plant (field) resistance (Wildermuth and McNamara 1994). The objectives of this study were to (i) confirm the QTLs detected in the 2-49 × Janz population in an independent mapping population; (ii) test the level of polymorphism of tightlylinked markers in different genetic backgrounds into which these resistance QTLs might be backcrossed; and (iii) compare the SSR haplotype of 2-49 at these loci with other crown rot resistant genotypes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Confirmation of QTL mapping and marker validation for partial seedling resistance to crown rot in wheat line '2-49'

Collard

Jolley

Bovill

et al. 2006

Aust. J. Agric. Res.

Self Cite

View full text Add to dashboard Cite

Abstract. We have tested the efficacy of putative microsatellite single sequence repeat (SSR) markers, previously identified in a 2-49 (Gluyas Early/Gala) × Janz doubled haploid wheat (Triticum aestivum) population, as being linked to partial seedling resistance to crown rot disease caused by Fusarium pseudograminearum. The quantitative trait loci (QTLs) delineated by these markers have been tested for linkage to resistance in an independent Gluyas Early × Janz doubled haploid population. The presence of a major QTL on chromosome 1DL (QCr.usq-1D1) and a minor QTL on chromosome 2BS (QCr.usq-2B1) was confirmed. However, a putative minor QTL on chromosome 2A was not confirmed. The QTL on 1D was inherited from Gluyas Early, a direct parent of 2-49, whereas the 2B QTL was inherited from Janz. Three other putative QTLs identified in 2-49 × Janz (on 1AL, 4BL, and 7BS) were inherited by 2-49 from Gala and were not able to be confirmed in this study. The screening of SSR markers on a small sample of elite wheat genotypes indicated that not all of the most tightly linked SSR markers flanking the major QTLs on 1D and 1A were polymorphic in all backgrounds, indicating the need for additional flanking markers when backcrossing into some elite pedigrees. Comparison of SSR haplotypes with those of other genotypes exhibiting partial crown rot resistance suggests that additional, novel sources of crown rot resistance are available.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Confirmation of QTL mapping and marker validation for partial seedling resistance to crown rot in wheat line '2-49'

Collard

Jolley

Bovill

et al. 2006

Aust. J. Agric. Res.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Sunco is partially resistant, Janz susceptible and Cunningham highly susceptible to this disease (Anon. 1993;Wildermuth and McNamara 1994).…”

mentioning

confidence: 99%

“…Hartog is susceptible to crown rot. To evaluate genotypic differences in incidence and severity of the disease, 6 g of seed of each genotype was sown in the field in single 3 m rows in three replicates with and without inoculum of F. pseudograminearum (Wildermuth and McNamara 1994).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Genotypic differences in partial resistance to crown rot caused by Fusarium pseudograminearum in relation to an osmoregulation gene in wheat

Wildermuth¹,

Morgan

2004

Austral. Plant Pathol.

Self Cite

View full text Add to dashboard Cite

Abstract. Both crown rot and osmoregulation are expressed when wheat plants undergo water stress. A possible genetic linkage between high osmoregulation and partial resistance to crown rot was investigated by using lines that had been bred for high osmoregulation (or gene) from parents with low osmoregulation and varying crown rot resistances. Analysis of the incidence and severity of the disease showed no association with the presence or absence of the or gene.A P 0 3 0 7 8 O s m o r e g u l a t i o n a n d c r o w n r o t r e s i s t a n c e i n wh e a t G . B . W i l d e r mu t h a n d J . M. M o r g a n

show abstract

FusariumandFusarium–Cereal Interactions

Nicholson

2009

Encyclopedia of Life Sciences

View full text Add to dashboard Cite

The genus Fusarium currently includes over 80 species. This number is increasing as studies based upon deoxyribonucleic acid (DNA) sequence comparison become more common. The majority of Fusarium species are associated with plants and many are important plant pathogens. This review introduces the species of greatest significance with respect to cereal crops. As well as causing significant yield loss, many of the species produce a range of secondary metabolites (mycotoxins) that are harmful to human and animal consumers. Studies are unravelling the genetics of mycotoxin biosynthesis and regulation but work is still required to understand the role of these compounds in the life cycle of the producing fungi.

show abstract

Testing Wheat Seedlings for Resistance to Crown Rot Caused byFusarium graminearumGroup 1

Cited by 111 publications

References 0 publications

Confirmation of QTL mapping and marker validation for partial seedling resistance to crown rot in wheat line '2-49'

Confirmation of QTL mapping and marker validation for partial seedling resistance to crown rot in wheat line '2-49'

Genotypic differences in partial resistance to crown rot caused by Fusarium pseudograminearum in relation to an osmoregulation gene in wheat

FusariumandFusarium–Cereal Interactions

Contact Info

Product

Resources

About