000 02694nab a22003737a 4500
999 _c62711
_d62703
001 62711
003 MX-TxCIM
005 20211006073918.0
008 190815s2020 xxk|||p|op||| 00| 0 eng d
022 _a0906-4710
022 _a1651-1913 (Online)
024 8 _ahttps://doi.org/10.1080/09064710.2020.1818818
040 _aMX-TxCIM
041 0 _aeng
100 1 _916370
_aThungo, Z.
245 1 0 _aGenetic relationship among selected heat and drought tolerant bread wheat genotypes using SSR markers, agronomic traits and grain protein content
260 _aUnited Kingdom :
_bTaylor and Francis,
_c2020.
500 _aPeer review
520 _aAssessing the genetic variation and relationships present in crop germplasm is a pre-requisite for parental selection and breeding. The objective of this study was to determine the genetic relationships present among selected heat and drought tolerant wheat genotypes using simple sequence repeat (SSR) markers, agronomic traits and grain quality parameters to select desirable parents for breeding. Twenty-four agronomically selected wheat genotypes sourced from the International Maize and Wheat Improvement Centre (CIMMYT)’s heat and drought tolerance nursery and four local check varieties were genotyped using 12 selected polymorphic SSR markers. The test genotypes were phenotyped using yield and yield-component traits, and grain protein content (GPC) under non-stressed (NS) and drought-stressed (DS) conditions. Expected heterozygosity mean value of 0.58 indicated moderate genetic diversity for breeding. The studied wheat genotypes were delineated into six genetic groups using cluster analysis. Significant genotypic differences were observed for agronomic traits and GPC under NS and DS conditions. Genetically unrelated breeding parents including LM02, LM13, LM23, LM41, LM44, LM71, LM73 and LM75 were selected for population development and breeding for enhanced grain yield and protein content under heat and drought-stressed environments.
546 _aText in English
650 7 _2AGROVOC
_93448
_aAbiotic stress
650 7 _2AGROVOC
_91125
_aGenetic diversity
650 7 _2AGROVOC
_92091
_aGenetic gain
650 7 _2AGROVOC
_91138
_aGrain
650 7 _2AGROVOC
_92261
_aMicrosatellites
650 7 _2AGROVOC
_91296
_aTriticum aestivum
650 7 _aCrop yield
_gAGROVOC
_2
_91066
700 1 _92255
_aShimelis, H.
700 1 _916371
_aOdindo, A.
700 1 _916372
_aMashilo, J.
700 1 _916373
_aShayanowako, A.
773 0 _dUnited Kingdom : Taylor and Francis, 2020.
_gv. 70, no. 7, p. 594-604
_tActa Agriculturae Scandinavica : section B, Soil and Plant Science
_wu445348
_x0906-4710
942 _2ddc
_cJA
_n0