"11744","14","archive","3170",,,"disk0/00/01/17/44","2021-03-15 08:48:42","2021-03-15 08:48:42","2021-03-15 08:48:42","article",,,"show",,,,"","","","","","","","","","",,,,"Pandey","M K","","","","","","","Pandey","M K","","","","",,,,,"","",,,,,"","","ICRISAT (Patancheru)","India","Improved Genetic Map Identified Major QTLs for Drought Tolerance- and Iron Deficiency Tolerance-Related Traits in Groundnut","pub","ABio","CRPS3","CG1","public",,,"Abiotic stress, Arachis hypogaea, Map density, SNP array, Genetic map, Genomics-assisted, Breeding, Peanut",,"The authors are thankful to the National Agricultural Science Fund (NASF)
of the Indian Council of Agricultural Research, India, and the Bill and Melinda Gates Foundation
(BMGF), USA, for partial financial assistance. The work reported in this article was undertaken as a
part of the CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC). ICRISAT is a
member of the CGIAR.","A deep understanding of the genetic control of drought tolerance and iron deficiency
tolerance is essential to hasten the process of developing improved varieties with higher tolerance
through genomics-assisted breeding. In this context, an improved genetic map with 1205 loci was developed
spanning 2598.3cM with an average 2.2cM distance between loci in the recombinant inbred
line (TAG 24 � ICGV 86031) population using high-density 58K single nucleotide polymorphism
(SNP) “Axiom_Arachis” array. Quantitative trait locus (QTL) analysis was performed using extensive
phenotyping data generated for 20 drought tolerance- and two iron deficiency tolerance-related
traits from eight seasons (2004–2015) at two locations in India, one in Niger, and one in Senegal.
The genome-wide QTL discovery analysis identified 19 major main-effect QTLs with 10.0–33.9%
phenotypic variation explained (PVE) for drought tolerance- and iron deficiency tolerance- related
traits. Major main-effect QTLs were detected for haulm weight (20.1% PVE), SCMR (soil plant analytical
development (SPAD) chlorophyll meter reading, 22.4% PVE), and visual chlorosis rate (33.9%
PVE). Several important candidate genes encoding glycosyl hydrolases; malate dehydrogenases;
microtubule-associated proteins; and transcription factors such as MADS-box, basic helix-loop-helix
(bHLH), NAM, ATAF, and CUC (NAC), and myeloblastosis (MYB) were identified underlying these
QTL regions. The putative function of these genes indicated their possible involvement in plant
growth, development of seed and pod, and photosynthesis under drought or iron deficiency conditions
in groundnut. These genomic regions and candidate genes, after validation, may be useful
to develop molecular markers for deploying genomics-assisted breeding for enhancing groundnut
yield under drought stress and iron-deficient soil conditions.","2020-12","published",,"Genes (TSI)","12","1","MDPI",,"1-22",,,,,,"doi:10.3390/genes12010037",,,,,"TRUE",,"2073-4425",,,,,,"","https://doi.org/10.3390/genes12010037","https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=10.3390%2Fgenes12010037&btnG=","pub",,"","",,,,,,"",,,,,,,"",,,,,"",,,,,"","",,,,,"","",,,,,
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"11744",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Faye","I","","",,,,,"Nigam","S N","","",,,,,,,,,,,,,,,"Key Laboratory of Peanut Biology and Genetic Improvement, Shandong Peanut Research Institute, Qingdao","France",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
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"11744",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Desmae","H","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
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