Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Identification of QTLs and candidate genes for high grain Fe and Zn concentration in sorghum [Sorghum bicolor (L.)Moench]
Journal of Cereal Science, Volume 90, Article 102850, Year 2019
Notification
URL copied to clipboard!
Description
Sorghum is a major food crop in the semi-arid tropics of Africa and Asia. Enhancing the grain iron (Fe) and zinc (Zn) concentration in sorghum using genetic approaches would help alleviate micronutrient malnutrition in millions of poor people consuming sorghum as a staple food. To localize genomic regions associated with grain Fe and Zn, a sorghum F6 recombinant inbred line (RIL) population (342 lines derived from cross 296B × PVK 801) was phenotyped in six environments, and genotyped with simple sequence repeat (SSR), DArT (Diversity Array Technology) and DArTSeq (Diversity Array Technology) markers. Highly significant genotype × environment interactions were observed for both micronutrients. Grain Fe showed greater variation than Zn. A sorghum genetic map was constructed with 2088 markers (1148 DArTs, 927 DArTSeqs and 13 SSRs) covering 1355.52 cM with an average marker interval of 0.6 cM. Eleven QTLs (individual) and 3 QTLs (across) environments for Fe and Zn were identified. We identified putative candidate genes from the QTL interval of qfe7.1, qzn7.1, and qzn7.2 (across environments) located on SBI-07 involved in Fe and Zn metabolism. These were CYP71B34, and ZFP 8 (ZINC FINGER PROTEIN 8). After validation, the linked markers identified in this study can help in developing high grain Fe and Zn sorghum cultivars in sorghum improvement programs globally. © 2019 Elsevier Ltd
Authors & Co-Authors
Rathore, Abhishek Singh
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Srivastava, Rakesh Kumar
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Das, Roma Rani
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Hash, Charles Tom
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Reddy, Belum Venkata Subba R.
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Patil, Jagannatha Vishnu
India, Hyderabad
Icar - Indian Institute of Millets Research, Hyderabad
Gaddameedi, Anil
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Deshpande, Santosh Pandurang
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Ashok Kumar, Are
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Statistics
Citations: 20
Authors: 9
Affiliations: 3
Identifiers
Doi:
10.1016/j.jcs.2019.102850
ISSN:
07335210
Research Areas
Food Security
Genetics And Genomics
Study Design
Cross Sectional Study