000			03475nab a22004217a 4500
001			G82580
003			MX-TxCIM
005			20231018194946.0
008			210630s2005 ne |||p|op||| 00| 0 eng d
022			_a1573-5060 (Online)
022			_a0014-2336
024	8		_ahttps://doi.org/10.1007/s10681-005-6437-8
040			_aMX-TxCIM
041			_aeng
090			_aCIS-4591
100	1		_aMoghaddam, M.E. _93906
245	1	0	_aAssessment of genetic diversity in bread wheat genotypes for tolerance to drought using AFLPs and agronomic traits
260			_aDordrecht (Netherlands) : _bSpringer, _c2005.
340			_aPrinted|Computer File
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0014-2336
520			_aMoisture stress greatly limits the productivity of wheat in many wheat-growing regions of the world. Knowledge of the degree of genetic diversity among parental materials for key selection traits will facilitate the development of high yielding, stress tolerant wheat cultivars. The objectives of this study were to: (i) use amplified fragment length polymorphisms (AFLPs) to assess genetic diversity among bread wheat lines and cultivars with different responses to drought stress in two distinct environments and, (ii) compare genetic diversity estimated by AFLPs with diversity evaluated on agronomic performance under drought stress. Twenty-eight genotypes, 14 from Iran and 14 developed or obtained by CIMMYT, were evaluated in the study. Phenotypic data on the 14 Iranian lines were obtained in Iran, and data on the 14 CIMMYT lines were collected in Mexico. Ten AFLP primer pairs detected 335 polymorphic bands among the 28 cultivars. At the 5th fusion level of the resulting dendrogram, 6 genotype clusters were identified. Thirteen of the 14 CIMMYT genotypes grouped into one cluster while 4 of the remaining groups were comprised only of Iranian genotypes. When the agronomic performance of the Iranian materials was compared with the AFLP diversity analysis, 5 of the 6 drought susceptible genotypes clustered together in the agronomic dendrogram, and were located in the same cluster in the AFLP dendrogram. However, the drought tolerant Iranian materials did not show the same degree of relationship. The CIMMYT materials did not demonstrate a significant association between agronomic performance and genetic diversity determined using AFLPs. Clearly these data show that there are genotypes with similar agronomic performance and different genetic constitutions in this study that can be combined in a breeding program to potentially improve tolerance to drought stress.
546			_aText in English
591			_aSpringer|0009
650		7	_2AGROVOC _91310 _aWheat
650		7	_2AGROVOC _91129 _aGenetic variation
650		7	_2AGROVOC _91082 _aDrought tolerance
650		7	_2AGROVOC _913624 _aAmplified fragment length polymorphism
650		7	_2AGROVOC _91008 _aAgronomic characters
700	1		_9341 _aTrethowan, R.M.
700	1		_aWilliam, H.M. _8I1706703 _gExcellence in Breeding _919524
700	1		_aRezai, A. _920741
700	1		_aArzani, A. _920742
700	1		_aMirlohi, A.F. _920743
773	0		_tEuphytica _n633472 _gv. 141, no. 1-2, p. 147-156 _dDordrecht (Netherlands) : Springer, 2005. _wG444298 _x0014-2336
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/725
942			_cJA _2ddc _n0
999			_c25599 _d25599