Quantitative trait loci for grain yield and adaptation of durum wheat (Triticum durum Desf.) across a wide range of water availability

被引：280

作者：

Maccaferri, Marco ^{[1
]}

Sanguineti, Maria Corinna ^{[1
]}

Corneti, Simona ^{[1
]}

Ortega, Jose Luis Araus ^{[2
]}

Ben Salem, Moncef ^{[3
]}

Bort, Jordi ^{[2
]}

DeAmbrogio, Enzo ^{[4
]}

Fernando Garcia del Moral, Luis ^{[5
]}

Demontis, Andrea ^{[4
]}

El-Ahmed, Ahmed ^{[6
]}

Maalouf, Fouad ^{[8
]}

Machlab, Hassan ^{[8
]}

Martos, Vanessa ^{[5
]}

Moragues, Marc ^{[9
]}

Motawaj, Jihan ^{[7
]}

Nachit, Miloudi ^{[7
]}

Nserallah, Nasserlehaq ^{[10
]}

Ouabbou, Hassan ^{[10
]}

Royo, Conxita ^{[9
]}

Slama, Amor ^{[3
]}

Tuberosa, Roberto ^{[1
]}

机构：

[1] Univ Bologna, Dept Agroenvironm Sci & Technol, I-40127 Bologna, Italy

[2] Univ Barcelona, Dept Plant Biol, E-08028 Barcelona, Spain

[3] Tunisian Natl Inst Agron Res, Tunis 2080, Tunisia

[4] Societa Produllori Sementi Bologna, Div Res, I-40050 Argelato, Italy

[5] Univ Granada, Dept Plant Physiol, Granada 18071, Spain

[6] Aleppo Univ, Dept Plant Protect, Aleppo, Syria

[7] ICARDA, Aleppo, Syria

[8] Lebanese Agr Res Inst, Dept Plant Breeding, Zahleh, Lebanon

[9] Udl IRTA, Field Crops Sect, Inst Food & Agr Res & Technol, Lleida 25198, Spain

[10] CRRA INRA, Settat 26000, Morocco

来源：

GENETICS | 2008年 / 178卷 / 01期

关键词：

D O I：

10.1534/genetics.107.077297

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

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 R 2 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 HIS, 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.

引用

页码：489 / 511

页数：23

共 120 条

[1] Relationships between ash content, carbon isotope discrimination and yield in durum wheat [J].