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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eraa182
|2 doi
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|a pubmed24n1028.xml
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|a (DE-627)NLM308627997
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|a (NLM)32277700
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Diop, Bathe
|e verfasserin
|4 aut
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| 245 |
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|a Bridging old and new
|b diversity and evaluation of high iron-associated stress response of rice cultivated in West Africa
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 14.05.2021
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|a Date Revised 14.05.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Adoption of rice varieties that perform well under high iron-associated (HIA) stress environments can enhance rice production in West Africa. This study reports the genetic characterization of 323 rice accessions and breeding lines cultivated in West Africa using genotyping-by-sequencing and their phenotypic response to HIA treatments in hydroponic solution (1500 mg l-1 FeSO4·7H2O) and hot-spot fields. The germplasm consisted of four genetic subpopulations: Oryza glaberrima (14%), O. sativa-japonica (7%), O. sativa-indica Group 1 (45%), and O. sativa-indica Group 2 (25%). Severe versus mild stress in the field was associated with a reduced SPAD value (12%), biomass (56%), and grain yield (57%), with leaf bronzing explaining 30% and 21% of the variation for biomass and grain yield, respectively. Association mapping using 175 indica genotypes identified 23 significant single nucleotide polymorphism (SNP) markers that mapped to 14 genomic regions. Genome-wide association study (GWAS) signals associated with leaf bronzing, a routinely used indicator of HIA stress, differed in hydroponic compared with field conditions. Contrastingly, six significant SNPs on chromosomes 8 and 9 were associated with the SPAD value under HIA stress in both field and hydroponic experiments, and a candidate potassium transporter gene mapped under the peak on chromosome 8. This study helps define criteria for assessing rice performance under HIA environments
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Abiotic stress
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|a GWAS
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|a West Africa
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|a genetic diversity
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|a population structure
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|a rice
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|a Iron
|2 NLM
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| 650 |
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|a E1UOL152H7
|2 NLM
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| 700 |
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|a Wang, Diane R
|e verfasserin
|4 aut
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|a Drame, Khady N
|e verfasserin
|4 aut
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|a Gracen, Vernon
|e verfasserin
|4 aut
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|a Tongoona, Pangirayi
|e verfasserin
|4 aut
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|a Dzidzienyo, Daniel
|e verfasserin
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|a Nartey, Eric
|e verfasserin
|4 aut
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|a Greenberg, Anthony J
|e verfasserin
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|a Djiba, Saliou
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|a Danquah, Eric Y
|e verfasserin
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|a McCouch, Susan R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 71(2020), 14 vom: 06. Juli, Seite 4188-4200
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:71
|g year:2020
|g number:14
|g day:06
|g month:07
|g pages:4188-4200
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|u http://dx.doi.org/10.1093/jxb/eraa182
|3 Volltext
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