Genetic characterization of maize doubled haploid lines for Fusarium stalk rot caused by Fusarium verticillioides

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dc.contributor.authorBabu, B. M. Showkathen_US
dc.contributor.authorH. C. Lohithaswaen_US
dc.contributor.authorMALLIKARJUNA, N.en_US
dc.contributor.authorPANDRAVADA, Ananden_US
dc.contributor.authorBalasundara, D. C.en_US
dc.date.accessioned2020-11-18T10:21:05Z
dc.date.available2020-11-18T10:21:05Z
dc.date.issued2020-11
dc.description.abstractFusarium stalk rot disease (FSR) of maize caused by Fusarium verticillioides (Sacc.) Nirenberg is becoming an important biotic production constraint in many of the major maize growing areas causing substantial yield losses. Inbreds are preferred as parents in hybrid development owing to homozygous nature and high heterotic ability. Double haploid (DH) technology has emerged as a significant milestone. A total of 339 DH lines were generated from two inbred lines, VL1043 (susceptible) and CM212 (resistant), through in vivo haploid induction method. The 339 DH lines along with parents were phenotyped for their response to the FSR at the College of Agriculture, V. C. Farm, Mandya, India during summer, kharif and rabi seasons of the 2019–2020. Best linear unbiased predictors (BLUPs) were estimated for the FSR disease scores over three seasons. A wide range of BLUP scores of three to nine indicated the presence of higher variation for response of DH lines to FSR disease. The higher estimates of standardized range (1.31) and phenotypic coefficient of variation (19.80) also displayed higher variability. Nine lines were moderately resistant and 188 exhibited moderately susceptible reaction. The distribution of DH lines was positively skewed (1.34) and platykurtic (2.31) which suggested complementary epistasis and involvement of large number of genes in the disease expression.en_US
dc.identifier.affiliationsDepartment of Genetics and Plant Breeding, University of Agricultural Sciences, GKVK, Bengaluru 560 065, Indiaen_US
dc.identifier.affiliationsDepartment of Genetics and Plant Breeding, College of Agriculture, V. C. Farm, Mandya 571 405, Indiaen_US
dc.identifier.affiliationsAICRP on Maize, Zonal Agricultural Research Station, V. C. Farm, Mandya 571 405, Indiaen_US
dc.identifier.affiliationsCorteva Agriscience Pvt. Ltd, Research Farm, Kallinayakanahalli, Gauribidanur Taluk, Chikkaballapur, Indiaen_US
dc.identifier.affiliationsCorteva Agriscience Pvt. Ltd, Research Farm, Kallinayakanahalli, Gauribidanur Taluk, Chikkaballapur, Indiaen_US
dc.identifier.citationBabu B. M. Showkath, H. C. Lohithaswa , Mallikarjuna N., Pandravada Anand, Balasundara D. C.. Genetic characterization of maize doubled haploid lines for Fusarium stalk rot caused by Fusarium verticillioides. Journal of Genetics. 2020 Nov; 99: 1-5en_US
dc.identifier.issn0022-1333
dc.identifier.issn0973-7731
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/215495
dc.languageenen_US
dc.publisherIndian Academy of Sciencesen_US
dc.relation.volume99en_US
dc.source.urihttps://doi.org/10.1007/s12041-020-01241-7en_US
dc.subjectmaizeen_US
dc.subjectFusarium stalk roten_US
dc.subjectdoubled haploid linesen_US
dc.subjectresistanceen_US
dc.subjectplatykurticen_US
dc.subjectcomplementary epistasis.en_US
dc.titleGenetic characterization of maize doubled haploid lines for Fusarium stalk rot caused by Fusarium verticillioidesen_US
dc.typeJournal Articleen_US
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