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Mapping QTL for Root and Shoot Morphological Traits in a Durum Wheat × T. dicoccum Segregating Population at Seedling Stage
Joint Authors
Blanco, A.
Gadaleta, A.
Iannucci, Anna
Marone, Daniela
Russo, Maria Anna
De Vita, Pasquale
Miullo, Vito
Ferragonio, Pina
Mastrangelo, Anna Maria
Source
International Journal of Genomics
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-06
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
A segregating population of 136 recombinant inbred lines derived from a cross between the durum wheat cv.
“Simeto” and the T.
dicoccum accession “Molise Colli” was grown in soil and evaluated for a number of shoot and root morphological traits.
A total of 17 quantitative trait loci (QTL) were identified for shoot dry weight, number of culms, and plant height and for root dry weight, volume, length, surface area, and number of forks and tips, on chromosomes 1B, 2A, 3A, 4B, 5B, 6A, 6B, and 7B.
LODs were 2.1 to 21.6, with percent of explained phenotypic variability between 0.07 and 52.
Three QTL were mapped to chromosome 4B, one of which corresponds to the Rht-B1 locus and has a large impact on both shoot and root traits (LOD 21.6).
Other QTL that have specific effects on root morphological traits were also identified.
Moreover, meta-QTL analysis was performed to compare the QTL identified in the “Simeto” × “Molise Colli” segregating population with those described in previous studies in wheat, with three novel QTL defined.
Due to the complexity of phenotyping for root traits, further studies will be helpful to validate these regions as targets for breeding programs for optimization of root function for field performance.
American Psychological Association (APA)
Iannucci, Anna& Marone, Daniela& Russo, Maria Anna& De Vita, Pasquale& Miullo, Vito& Ferragonio, Pina…[et al.]. 2017. Mapping QTL for Root and Shoot Morphological Traits in a Durum Wheat × T. dicoccum Segregating Population at Seedling Stage. International Journal of Genomics،Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1167208
Modern Language Association (MLA)
Iannucci, Anna…[et al.]. Mapping QTL for Root and Shoot Morphological Traits in a Durum Wheat × T. dicoccum Segregating Population at Seedling Stage. International Journal of Genomics No. 2017 (2017), pp.1-17.
https://search.emarefa.net/detail/BIM-1167208
American Medical Association (AMA)
Iannucci, Anna& Marone, Daniela& Russo, Maria Anna& De Vita, Pasquale& Miullo, Vito& Ferragonio, Pina…[et al.]. Mapping QTL for Root and Shoot Morphological Traits in a Durum Wheat × T. dicoccum Segregating Population at Seedling Stage. International Journal of Genomics. 2017. Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1167208
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1167208