eprintid: 11255
rev_number: 11
eprint_status: archive
userid: 1305
dir: disk0/00/01/12/55
datestamp: 2019-08-21 05:00:31
lastmod: 2019-08-21 05:13:01
status_changed: 2019-08-21 05:00:31
type: article
metadata_visibility: show
creators_name: Sandhu, N
creators_name: Subedi, S R
creators_name: Singh, V K
creators_name: Sinha, P
creators_name: Kumar, S
creators_name: Singh, S P
creators_name: Ghimire, S K
creators_name: Pandey, M
creators_name: Yadaw, R B
creators_name: Varshney, R K
creators_name: Kumar, A
creators_gender: Female
icrisatcreators_name: Sinha, P
icrisatcreators_name: Varshney, R K
affiliation: International Rice Research Institute (Metro Manila)
affiliation: International Rice Research Institute, South Asia Hub (Patancheru)
affiliation: ICRISAT (Patancheru)
affiliation: ICAR Research Complex for Eastern Region (Patna)
affiliation: Agriculture and Forestry University, Rampur (Chitwan)
affiliation: National Rice Research Program (Hardinath)
affiliation: Punjab Agricultural University (Ludhiana)
country: Philippines
country: India
country: Nepal
title: Deciphering the genetic basis of root morphology, nutrient uptake, yield, and yield-related traits in rice under dry direct-seeded cultivation systems
ispublished: pub
subjects: S2021
subjects: SA1
subjects: s2.13
divisions: CRPS3
full_text_status: public
keywords: rice, genetic basis, genomics, genetics, QTLs
note: We thank the Asian Development Bank and Government of Finland for their financial support for this study
through the project “TA8441-Development and dissemination of climate-resilient rice varieties for water-short
areas of South Asia and Southeast Asia”.
abstract: In the face of global water scarcity, a successful transition of rice cultivation from puddled to dry direct-seeded rice (DDSR) is a future need. A genome-wide association study was performed on a complex mapping population for 39 traits: 9 seedling-establishment traits, 14 root and nutrient-uptake traits, 5 plant morphological traits, 4 lodging resistance traits, and 7 yield and yield-contributing traits. A total of 10 significant marker-trait associations (MTAs) were found along with 25 QTLs associated with 25 traits. The percent phenotypic variance explained by SNPs ranged from 8% to 84%. Grain yield was found to be significantly and positively correlated with seedling-establishment traits, root morphological traits, nutrient uptake-related traits, and grain yield-contributing traits. The genomic colocation of different root morphological traits, nutrient uptake-related traits, and grain-yield-contributing traits further supports the role of root morphological traits in improving nutrient uptake and grain yield under DDSR. The QTLs/candidate genes underlying the significant MTAs were identified. The identified promising progenies carrying these QTLs may serve as potential donors to be exploited in genomics-assisted breeding programs for improving grain yield and adaptability under DDSR.
date: 2019-06
date_type: published
publication: Scientific Reports (TSI)
volume: 9 (1)
number: 9334
publisher: Springer Nature Publishing
pagerange: 1-16
id_number: 10.1038/s41598-019-45770-3
refereed: TRUE
issn: 2045-2322
official_url: https://doi.org/10.1038/s41598-019-45770-3
related_url_url: https://scholar.google.co.in/scholar?hl=en&as_sdt=0%2C5&q=Deciphering+the+genetic+basis+of+root+morphology%2C+nutrient+uptake%2C+yield%2C+and+yield-related+traits+in+rice+under+dry+direct-seeded+cultivation+systems&btnG=
related_url_type: pub
funders: Asian Development Bank
funders: Government of Finland
projects: TA8441-Development and dissemination of climate-resilient rice varieties for water-short areas of South Asia and Southeast Asia
citation:   Sandhu, N and Subedi, S R and Singh, V K and Sinha, P and Kumar, S and Singh, S P and Ghimire, S K and Pandey, M and Yadaw, R B and Varshney, R K and Kumar, A  (2019) Deciphering the genetic basis of root morphology, nutrient uptake, yield, and yield-related traits in rice under dry direct-seeded cultivation systems.  Scientific Reports (TSI), 9 (1) (9334).  pp. 1-16.  ISSN 2045-2322     
document_url: http://oar.icrisat.org/11255/1/s41598-019-45770-3.pdf