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GrainGenes Reference Report: CPA-65-80

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Reference	CPA-65-80
Title	QTL dissection of yield components and morpho-physiological traits in a durum wheat elite population tested in contrasting thermo-pluviometric conditions.
Journal	Crop & Pasture Science
Year	2014
Volume	65
Pages	80-95
Author	Graziani M Maccaferri M Royo C Salvatorelli F Tuberosa R
Abstract	Dissection of the genetic basis of the adaptive response of durum wheat to unfavourable water and temperature regimes is an important prerequisite for the selection of genotypes less vulnerable to environmental constraints. An elite durum population of 249 recombinant inbred lines was tested across 16 Mediterranean environments characterised by contrasting thermo-pluviometric conditions and, consequently, a broad range of productivity (from 0.56 to 5.88 t ha-1). Among the environmental variables investigated, soil moisture during grain filling showed the most consistent correlation with yield components and grain yield, whereas a weaker, albeit in some cases significant, association was noted with temperature at heading and thermal time during grain filling. Ear peduncle length appeared as a valid and easy-to-phenotype morphological proxy for the water available to the plant. In total, 76 quantitative trait loci (QTLs) were identified for yield components and for several morpho-physiological traits (peduncle length, the spectral reflectance index NDVI and leaf greenness at the milk-grain stage expressed in SPAD units) associated with the adaptive response of wheat to water and heat stresses. Although most of the QTLs were significant in only one or two environments, two major QTLs on chromosomes 2BL and 3BS showed consistent additive and epistatic effects on 1000-kernel weight, peduncle length, SPAD values and grain yield in half of the environments. In view of their strong phenotypic effects on kernel weight, these two QTLs are good candidates for positional cloning in order to gain a better understanding of the functional basis of their effect on the plasticity of grain weight and grain yield.
External Databases	https://doi.org/10.1071/CP13349
Locus	gwm1136-1B cfa2086-1B
QTL	[ Hide all but 1 of 126 ] QTkw.KoxSv-1A QTkw.KoxSv-1B QTkw.KoxSv-2A QTkw.KoxSv-2B QTkw.KoxSv-3A QTkw.KoxSv-3B.1 QTkw.KoxSv-3B.2 QTkw.KoxSv-4B QTkw.KoxSv-5B QTkw.KoxSv-6A QTkw.KoxSv-6B QTkw.KoxSv-7A QTkw.KoxSv-7B QKpsm.KoxSv-1A QKpsm.KoxSv-1B.1 QKpsm.KoxSv-1B.2 QKpsm.KoxSv-2A QKpsm.KoxSv-2B QKpsm.KoxSv-3B.1 QKpsm.KoxSv-3B.2 QKpsm.KoxSv-3B.3 QKpsm.KoxSv-3B.4 QKpsm.KoxSv-4B.1 QKpsm.KoxSv-4B.2 QKpsm.KoxSv-5A.1 QKpsm.KoxSv-5A.2 QKpsm.KoxSv-5B QKpsm.KoxSv-6B QKpsm.KoxSv-7B.1 QKpsm.KoxSv-7B.2 QSpsm.KoxSv-1A QSpsm.KoxSv-1B QSpsm.KoxSv-3A QSpsm.KoxSv-4A QSpsm.KoxSv-4B QSpsm.KoxSv-5A QSpsm.KoxSv-7A QSpsm.KoxSv-7B QTw.KoxSv-1A.1 QTw.KoxSv-1A.2 QTw.KoxSv-1B.1 QTw.KoxSv-1B.2 QTw.KoxSv-1B.3 QTw.KoxSv-2A QTw.KoxSv-2B QTw.KoxSv-3B.1 QTw.KoxSv-3B.2 QTw.KoxSv-3B.3 QTw.KoxSv-5A QTw.KoxSv-6A.1 QTw.KoxSv-6A.2 QTw.KoxSv-6B QTw.KoxSv-7B.1 QTw.KoxSv-7B.2 QKps.KoxSv-5A QKps.KoxSv-7A QTnms.KoxSv-4A QTnms.KoxSv-7B QPdl.KoxSv-1B QPdl.KoxSv-2B QPdl.KoxSv-3A QPdl.KoxSv-3B QPdl.KoxSv-7A QLgr.KoxSv-1B QLgr.KoxSv-2B QLgr.KoxSv-3B QLgr.KoxSv-6B QNdvi.KoxSv-2A QNdvi.KoxSv-2B QNdvi.KoxSv-3B QNdvi.KoxSv-6A QNdvi.KoxSv-7B QTL1378_1A-Graziani_et_al._2014 QTL1379_1B-Graziani_et_al._2014 QTL1386_2A-Graziani_et_al._2014 QTL1391_2B-Graziani_et_al._2014 QTL1392_3A-Graziani_et_al._2014 QTL1395_3B-Graziani_et_al._2014 QTL1399_3B-Graziani_et_al._2014 QTL1406_4B-Graziani_et_al._2014 QTL1413_5B-Graziani_et_al._2014 QTL1416_6A-Graziani_et_al._2014 QTL1417_6B-Graziani_et_al._2014 QTL1420_7A-Graziani_et_al._2014 QTL1425_7B-Graziani_et_al._2014 QTL1375_1A-Graziani_et_al._2014 QTL1380_1B-Graziani_et_al._2014 QTL1384_1B-Graziani_et_al._2014 QTL1387_2A-Graziani_et_al._2014 QTL1390_2B-Graziani_et_al._2014 QTL1394_3B-Graziani_et_al._2014 QTL1397_3B-Graziani_et_al._2014 QTL1401_3B-Graziani_et_al._2014 QTL1402_3B-Graziani_et_al._2014 QTL1404_4B-Graziani_et_al._2014 QTL1407_4B-Graziani_et_al._2014 QTL1408_5A-Graziani_et_al._2014 QTL1410_5A-Graziani_et_al._2014 QTL1412_5B-Graziani_et_al._2014 QTL1419_6B-Graziani_et_al._2014 QTL1422_7B-Graziani_et_al._2014 QTL1427_7B-Graziani_et_al._2014 QTL1377_1A-Graziani_et_al._2014 QTL1381_1B-Graziani_et_al._2014 QTL1393_3A-Graziani_et_al._2014 QTL1403_4A-Graziani_et_al._2014 QTL1405_4B-Graziani_et_al._2014 QTL1409_5A-Graziani_et_al._2014 QTL1421_7A-Graziani_et_al._2014 QTL1423_7B-Graziani_et_al._2014 QTL1374_1A-Graziani_et_al._2014 QTL1376_1A-Graziani_et_al._2014 QTL1382_1B-Graziani_et_al._2014 QTL1383_1B-Graziani_et_al._2014 QTL1385_1B-Graziani_et_al._2014 QTL1388_2A-Graziani_et_al._2014 QTL1389_2B-Graziani_et_al._2014 QTL1396_3B-Graziani_et_al._2014 QTL1398_3B-Graziani_et_al._2014 QTL1400_3B-Graziani_et_al._2014 QTL1411_5A-Graziani_et_al._2014 QTL1414_6A-Graziani_et_al._2014 QTL1415_6A-Graziani_et_al._2014 QTL1418_6B-Graziani_et_al._2014 QTL1424_7B-Graziani_et_al._2014 QTL1426_7B-Graziani_et_al._2014
Trait Study	Yield and Morpho-physiological traits, Kofa x Svevo, Graziani2014

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