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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Quantitative trait loci for grain yield and adaptation of durum wheat (Triticum durum Desf.) across a wide range of water availability
Genetics, Volume 178, No. 1, Year 2008
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Description
Grain yield is a major goal for the improvement of durum wheat, particularly in drought-prone areas. In this study, the genetic basis of grain yield (GY), heading date (HD), and plant height (PH) was investigated in a durum wheat population of 249 recombinant inbred lines evaluated in 16 environments (10 rainfed and 6 irrigated) characterized by a broad range of water availability and GY (from 5.6 to 58.8 q ha-1). Among the 16 quantitative trait loci (QTL) that affected GY, two major QTL on chromosomes 2BL and 3BS showed significant effects in 8 and 7 environments, with R2 values of 21.5 and 13.8% (mean data of all 16 environments), respectively. In both cases, extensive overlap was observed between the LOD profiles of GY and PH, but not with those for HD. QTL specific for PH were identified on chromosomes 1BS, 3AL, and 7AS. Additionally, three major QTL for HD on chromosomes 2AS, 2BL, and 7BS showed limited or no effects on GY. For both PH and GY, notable epistasis between the chromosome 2BL and 3BS QTL was detected across several environments. Copyright © 2008 by the Genetics Society of America.
Authors & Co-Authors
Maccaferri, Marco
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Sanguineti, Maria Corinna
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Corneti, Simona
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Ortega, José Luis Araus
Spain, Barcelona
Universitat de Barcelona
Salem, Moncef Ben
Tunisia, Tunis
University of Carthage, Institut National de la Recherche Agronomique de Tunisie
Bort, Jordi
Spain, Barcelona
Universitat de Barcelona
DeAmbrogio, Enzo
Italy, Bologna
Società Produttori Sementi Bologna
Del Moral, Luis Fernando Garcia
Spain, Granada
Universidad de Granada
Demontis, Andrea
Italy, Bologna
Società Produttori Sementi Bologna
El-Ahmed, Ahmed
Syrian Arab Republic, Aleppo
University of Aleppo
Maalouf, Fouad S.
Lebanon, Fanar
Institut de Recherches Agronomiques Libanais
Machlab, Hassan
Lebanon, Fanar
Institut de Recherches Agronomiques Libanais
Martos, V.
Spain, Granada
Universidad de Granada
Moragues, Marc
Spain, Caldes de Montbui
Institut de Recerca I Technologia Agroalimentaries
Motawaj, Jihan
Lebanon, Beirut
International Center for Agricultural Research in the Dry Areas Syria
Nachit, Miloudi Mikael
Lebanon, Beirut
International Center for Agricultural Research in the Dry Areas Syria
Nserallah, Nasserlehaq
Morocco, Settat
Centre Régional de la Recherche Agronomique de Settat
Ouabbou, Hassan
Morocco, Settat
Centre Régional de la Recherche Agronomique de Settat
Royo, Conxita
Spain, Caldes de Montbui
Institut de Recerca I Technologia Agroalimentaries
Slama, Amor
Tunisia, Tunis
University of Carthage, Institut National de la Recherche Agronomique de Tunisie
Tuberosa, Roberto
Italy, Bologna
Alma Mater Studiorum Università Di Bologna
Statistics
Citations: 21
Authors: 21
Affiliations: 10
Identifiers
Doi:
10.1534/genetics.107.077297
ISSN:
00166731
e-ISSN:
00166731
Research Areas
Environmental
Genetics And Genomics
Study Design
Cross Sectional Study
Study Approach
Quantitative