naa a22 4500 510788475 CHVBK 20180411083311.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12298-013-0188-0 doi (NATIONALLICENCE)springer-10.1007/s12298-013-0188-0 Molecular mapping of genomic regions harbouring QTLs for root and yield traits in sorghum ( Sorghum bicolor L. Moench) [Elektronische Daten] [Rajkumar,, B. Fakrudin, S. Kavil, Y. Girma, S. Arun, D. Dadakhalandar, B. Gurusiddesh, A. Patil, M. Thudi, S. Bhairappanavar, Y. Narayana, P. Krishnaraj, B. Khadi, M. Kamatar] Root system is a vital part of plants for absorbing soil moisture and nutrients and it influences the drought tolerance. Identification of the genomic regions harbouring quantitative trait loci (QTLs) for root and yield traits, and the linked markers can facilitate sorghum improvement through marker-assisted selection (MAS) besides the deeper understanding of the plant response to drought stress. A population of 184 recombinant inbred lines (RILs), derived from E36-1 × SPV570, along with parents were phenotyped for component traits of yield in field and root traits in an above ground rhizotron. High estimates of heritability and genetic advance for all the root traits and for most of the yield traits, presents high scope for improvement of these traits by simple selection. A linkage map constructed with 104 marker loci comprising 50 EST-SSRs, 34 non-genic nuclear SSRs and 20 SNPs, and QTL analysis was performed using composite interval mapping (CIM) approach. A total of eight and 20 QTLs were mapped for root and yield related traits respectively. The QTLs for root volume, root fresh weight and root dry weight were found co-localized on SBI-04, supported by a positive correlation among these traits. Hence, these traits can be improved using the same linked markers. The lack of overlap between the QTLs of component traits of root and yield suggested that these two sets of parameters are independent in their influence and the possibility of combining these two traits might enhance productivity of sorghum under receding moisture condition. Prof. H.S. Srivastava Foundation for Science and Society, 2013 Sorghum nationallicence Root traits nationallicence Variability and correlation analysis nationallicence Linkage map nationallicence QTLs mapping nationallicence Rajkumar, Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Fakrudin B. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Kavil S. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Girma Y. School of Plant Sciences and NRMES, Haramaya University, Alemaya City, Ethiopia aut Arun S. Bioinformatics Core, Purdue University, 47907, West Lafayette, IN, USA aut Dadakhalandar D. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Gurusiddesh B. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Patil A. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Thudi M. International Crop Research Institute for Semi-Arid Tropics, Patancheru, Hyderabad, India aut Bhairappanavar S. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Narayana Y. All India Coordinated Sorghum Improvement Programme, Main Agricultural Research Station, Dharwad, India aut Krishnaraj P. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut Khadi B. University of Agricultural Sciences, Dharwad, Dharwad, India aut Kamatar M. All India Coordinated Sorghum Improvement Programme, Main Agricultural Research Station, Dharwad, India aut Physiology and Molecular Biology of Plants Springer India 19/3(2013-07-01), 409-419 0971-5894 19:3<409 2013 19 12298 https://doi.org/10.1007/s12298-013-0188-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12298-013-0188-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rajkumar Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Fakrudin B. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Kavil S. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Girma Y. School of Plant Sciences and NRMES, Haramaya University, Alemaya City, Ethiopia aut NATIONALLICENCE 700 1- Arun S. Bioinformatics Core, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Dadakhalandar D. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Gurusiddesh B. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Patil A. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Thudi M. International Crop Research Institute for Semi-Arid Tropics, Patancheru, Hyderabad, India aut NATIONALLICENCE 700 1- Bhairappanavar S. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Narayana Y. All India Coordinated Sorghum Improvement Programme, Main Agricultural Research Station, Dharwad, India aut NATIONALLICENCE 700 1- Krishnaraj P. Institute of Agri-Biotechnology, University of Agricultural Sciences, Dharwad, 580 005, Dharwad, Karnataka, India aut NATIONALLICENCE 700 1- Khadi B. University of Agricultural Sciences, Dharwad, Dharwad, India aut NATIONALLICENCE 700 1- Kamatar M. All India Coordinated Sorghum Improvement Programme, Main Agricultural Research Station, Dharwad, India aut NATIONALLICENCE 773 0- Physiology and Molecular Biology of Plants Springer India 19/3(2013-07-01), 409-419 0971-5894 19:3<409 2013 19 12298 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer