The potential of genomic‐assisted breeding to improve Fusarium head blight resistance in winter durum wheat
The potential of genomic‐assisted breeding to improve Fusarium head blight resistance in winter durum wheat
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基因组辅助育种提高冬硬粒小麦赤霉病抗性的潜力
DOI:
10.1111/pbr.12515
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发表时间:
2017
期刊:
影响因子:
2
通讯作者:
C.F.H. Longin
中科院分区:
文献类型:
--
作者:
Miedaner;A.-N. Sieber;H. Desaint;H. Bürstmayr;T. Würschum;C.F.H. Longin
Durum wheat is the most important tetraploid wheat mainly used for semolina and pasta production, but is notorious for its high susceptibility to Fusarium head blight (FHB). Our objectives were to identify and characterize quantitative trait loci (QTL) in winter durum and to evaluate the potential of genomic approaches for the improvement of FHB resistance. Here, we employed an international panel of 170 winter and 14 spring durum lines, phenotyped forFusarium culmorumresistance at five environments. Heading date, plant height and mean FHB severity showed significant genotypic variation with high heritabilities and FHB resistance was negatively correlated with both heading date and plant height. The dwarfing geneRht‐B1significantly affected FHB resistance and the genome‐wide association scan identified eight additional QTL affecting FHB resistance, explaining between 1% and 14% of the genotypic variation. A genome‐wide prediction approach yielded only a slightly improved predictive ability compared to marker‐assisted selection based on the four strongest QTL. In conclusion, FHB resistance in durum wheat is a highly quantitative trait and in breeding programmes may best be tackled by classical high‐throughput recurrent phenotypic selection that can be assisted by genomic prediction if marker profiles are available.
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DOI:
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发表时间:
2014
期刊:
影响因子:
--
作者:
E. MayW.;R. FernandezM.;SellesF.;P. LafondG.
通讯作者:
P. LafondG.
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
F. Talas;F. Longin;T. Miedaner
通讯作者:
T. Miedaner
DOI:
10.1534/g3.115.021667
发表时间:
2015-09-15
期刊:
G3 (Bethesda, Md.)
影响因子:
--
作者:
Money D;Gardner K;Migicovsky Z;Schwaninger H;Zhong GY;Myles S
通讯作者:
Myles S
影响因子:
5.4
作者:
Sieber;C.F.H. Longin;W.L. Leiser;T. Würschum
通讯作者:
T. Würschum
影响因子:
30.8
作者:
Yu, JM;Pressoir, G;Buckler, ES
通讯作者:
Buckler, ES