000 02797nab a22004217a 4500
001 G93686
003 MX-TxCIM
005 20240919020946.0
008 210706s2010 gw |||p|op||| 00| 0 eng d
022 _a1432-2242 (Online)
022 _a0040-5752
024 8 _ahttps://doi.org/10.1007/s00122-009-1238-4
040 _aMX-TxCIM
041 _aeng
090 _aCIS-5967
100 1 _9855
_aSaint Pierre, C.
_gGlobal Wheat Program
_8INT2731
245 1 0 _aGene action of canopy temperature in bread wheat under diverse environments
260 _aBerlin (Germany) :
_bSpringer,
_c2010.
500 _aPeer review
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0040-5752
520 _aWhile canopy temperature (CT) shows a strong and reliable association with yield under drought and heat stress and is used in wheat breeding to select for yield, little is known of its genetic control. The objective of this study was to determine the gene action controlling CT in five wheat populations grown in diverse environments (heat, drought, and well-irrigated conditions). CT showed negative phenotypic correlations with grain yield under drought and well-irrigated environments. Additive × additive effects were most prevalent and significant for all crosses and environments. Dominance and dominance × dominance gene actions were also found, though the significance and direction was specific for each environment and genotypic cross. The use of CT as a selection criterion to improve tolerance to drought was supported by its significant association with grain yield and the genotype differences observed between cultivars. Our results indicated that genetic gains for CT in wheat could be achieved through conventional breeding. However, given some dominance and epistatic effects, it would be necessary to delay the selection process until the frequency of heterozygous loci within families is reduced.
536 _aGenetic Resources Program|Global Wheat Program
546 _aText in English
591 _aSpringer
594 _aINT1511|CCJL01|INT2731
595 _aCSC
650 7 _2AGROVOC
_91800
_aCanopy
650 7 _2AGROVOC
_97940
_aTemperature
650 7 _2AGROVOC
_91265
_aSoft wheat
650 7 _2AGROVOC
_98629
_aField Experimentation
650 7 _2AGROVOC
_91081
_aDrought stress
700 1 _aCrossa, J.
_gGenetic Resources Program
_8CCJL01
_959
700 0 _aYann Manes
_95665
700 1 _aReynolds, M.P.
_gGlobal Wheat Program
_8INT1511
_9831
773 0 _tTheoretical and Applied Genetics
_gv. 120, no. 6, p. 1107-1117
_dBerlin (Germany) : Springer, 2010.
_wG444762
_x0040-5752
856 4 _uhttps://hdl.handle.net/20.500.12665/710
_yAccess only for CIMMYT Staff
942 _cJA
_2ddc
_n0
999 _c27947
_d27947