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QTL MAPPING OF WHEAT DOUBLED HAPLOIDS FOR CHLOROPHYLL CONTENT AND CHLOROPHYLL FLUORESCENCE KINETICS UNDER DROUGHT STRESS IMPOSED AT ANTHESIS STAGE

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dc.contributor.author MEHMOONA ILYAS
dc.contributor.author NOSHIN ILYAS
dc.contributor.author MUHAMMAD ARSHAD
dc.contributor.author ALVINA GUL KAZI
dc.contributor.author ABDUL MUJEEB KAZI
dc.contributor.author ABDUL WAHEED
dc.date.accessioned 2023-01-05T06:59:53Z
dc.date.available 2023-01-05T06:59:53Z
dc.date.issued 2014-11-15
dc.identifier.citation Ilyas, M., Ilyas, N., Arshad, M., Kazi, A. G., Kazi, A. M., & Waheed, A. (2014). QTL mapping of wheat doubled haploids for chlorophyll content and chlorophyll fluorescence kinetics under drought stress imposed at anthesis stage. Pak. J. Bot, 46(5), 1889-1897. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/15614
dc.description.abstract Drought stress is one of the major environmental constraints to crop plants including wheat worldwide. Synthetic hexaploid can act as a vehicle for improving crop tolerance against biotic and abiotic stresses. Doubled haploid population consisting of one hundred and forty individuals derived from cross of Opata and SH223 was used in the present study to identify genomic regions associated with various quantitative attributes of physiological nature. Doubled haploid mapping population was phenotyped for chlorophyll content and chlorophyll fluorescence kinetics under control and drought stress imposed at anthesis stage. Genotyping of population was accomplished by utilizing two hundred and sixty one polymorphic Gaterslaben wheat microsatellites and Beltsville agriculture research center simple sequence repeats. Linkage map of doubled haploid population comprising of 19 linkage groups and covering map length of two thousands six hundred and twenty six (2626) cM was constructed using map maker software. Major and minor QTLs associated with quantitative traits were identified using QGene software. Major QTL for chlorophyll content (QTc.wwc-1B-S11) of doubled haploid mapping population under anthesis drought stress was mapped on chromosome 1B and explained 10.09 percent of phenotypic variation at LOD score of 5.5. Seven major and minor QTLs for PCFK of doubled haploids were identified on chromosome 1B, 7A and 7D under control and drought stress at anthesis stage. The identified QTLs are of prime importance for high resolution mapping in synthetic hexaploid wheat. Genomic synteny of doubled haploids was observed with rice chromosome 2, 4, 7 and maize chromosome 7 owing to occurrence of orthologous QTLs for chlorophyll content and chlorophyll fluorescence respectively. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Botanical Society en_US
dc.subject QTL mapping en_US
dc.subject Wheat en_US
dc.subject Chlorophyll en_US
dc.subject Stress en_US
dc.subject Haploids en_US
dc.title QTL MAPPING OF WHEAT DOUBLED HAPLOIDS FOR CHLOROPHYLL CONTENT AND CHLOROPHYLL FLUORESCENCE KINETICS UNDER DROUGHT STRESS IMPOSED AT ANTHESIS STAGE en_US
dc.type Article en_US


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