Identification of plant architecture and yield-related QTL in Vicia faba L.

被引:13
作者
Avila, C. M. [1 ]
Ruiz-Rodriguez, M. D. [1 ]
Cruz-Izquierdo, S. [1 ,3 ]
Atienza, S. G. [2 ]
Cubero, J. I. [4 ]
Torres, A. M. [1 ]
机构
[1] IFAPA Ctr Alameda del Obispo, Area Mejora & Biotecnol, Apdo 3092, Cordoba 14080, Spain
[2] Inst Agr Sostenible CSIC, Alameda del Obispo S-N, Cordoba 14004, Spain
[3] Colegio Postgrad Recursos Genet & Prod Genet, Km 36-5 Carr Mexico Texcoco,Campus Montecillo, Texcoco 56230, Edo De Mexico, Mexico
[4] Univ Cordoba, Dept Genet, ETSIAM, ceiA3, Campus Excelencia Int Agroalimentario, E-14071 Cordoba, Spain
关键词
Plant architecture; Yield; Faba bean; QTL validation; QUANTITATIVE TRAIT LOCI; ASCOCHYTA BLIGHT RESISTANCE; CROPPING SYSTEMS; ANALYSIS REVEALS; GRAIN-LEGUMES; LINKAGE MAPS; SELECTION; MARKERS; TRANSCRIPTOME; ENVIRONMENTS;
D O I
10.1007/s11032-017-0688-7
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Low and unstable yields across seasons and environments are among the main reasons which make profitability for farmers too low. Along with resistance/tolerance to biotic and abiotic stresses, plant architecture and yield-related traits are the main determinants of yield stability. The current study was conducted to identify and validate quantitative trait loci (QTL) for plant architecture and yield-related traits in faba bean; our results provide novel information about the genetics of plant architecture traits in this crop. An equina x paucijuga recombinant inbred line population was derived and submitted to field experiments at Cordoba (Spain) over a period of four seasons. Stable QTL were identified for eight of the traits evaluated. QTL clusters were identified on almost each chromosome. The high inter-trait correlations between some of the traits controlled by a cluster of QTL might reflect either a set of closely linked loci or, more likely, pleiotropic effects. The stability of many of these major QTL in different years offers the possibility of exploiting them via marker-assisted selection. Further fine mapping of these target regions will help to identify potential candidate genes using synteny.
引用
收藏
页数:13
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