Variation in anther extrusion and its impact on fusarium head blight and deoxynivalenol content in oat (Avena sativa L.)

dc.creatorSelamawit Tekle
dc.creatorSchofer, S.S.
dc.creatorXinyao He
dc.creatorYanhong Dong
dc.creatorBjornstad, A.
dc.date2022-03-18T01:20:21Z
dc.date2022-03-18T01:20:21Z
dc.date2020
dc.date.accessioned2023-07-17T20:09:04Z
dc.date.available2023-07-17T20:09:04Z
dc.identifierhttps://hdl.handle.net/10883/22020
dc.identifier10.3390/agronomy10030354
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7513786
dc.descriptionVariation and inheritance of anther extrusion and its effects on Fusarium head blight were studied. On a 0 to 9 scale, variation ranged from 1 to 6 in a North American oat panel and from 0 to 8 in a Nordic population. The inheritance was studied in two recombinant inbred line populations (Fiia × Stormogul and Svea × Stormogul). Fiia and Svea are recent white-seeded cultivars with low to medium anther extrusion, while Stormogul is an old black-seeded cultivar with high anther extrusion. Highly significant transgressive segregations and high heritabilities were observed (h2 = 0.91 in Fiia × Stormogul and h2 = 0.83 in Svea × Stormogul). Another extrusion was negatively correlated with Fusarium head blight and deoxynivalenol in spawn-inoculated field experiments, but significantly only in Fiia × Stormogul where the range in resistance was widest. Correlations were reversed in spray-inoculated greenhouse experiments, apparently spraying open florets defeated the avoidance mechanism. Anther extrusion may help oat avoid Fusarium infection in the field, but the genetic variance is inadequate and high anther extrusion is rare in modern genepools.
dc.languageEnglish
dc.publisherMDPI
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source3
dc.source10
dc.source2073-4395 (Online)
dc.sourceAgronomy
dc.source354
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectAnther Extrusion
dc.subjectAnther Retention
dc.subjectDeoxynivalenol
dc.subjectFusarium Head Blight
dc.subjectSpray Inoculation
dc.subjectSpawn Inoculation
dc.subjectVOMITOXIN
dc.subjectINOCULATION
dc.subjectANTHERS
dc.subjectFUSARIUM
dc.titleVariation in anther extrusion and its impact on fusarium head blight and deoxynivalenol content in oat (Avena sativa L.)
dc.typeArticle
dc.typePublished Version
dc.coverageBasel (Switzerland)


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