Version 1
: Received: 19 February 2023 / Approved: 20 February 2023 / Online: 20 February 2023 (07:29:42 CET)
Version 2
: Received: 21 April 2023 / Approved: 21 April 2023 / Online: 21 April 2023 (10:02:59 CEST)
Version 3
: Received: 11 May 2023 / Approved: 12 May 2023 / Online: 12 May 2023 (04:42:18 CEST)
How to cite:
Jinxin, G.; Jubin, S.; Xinyang, L.; Yuntao, Y.; Xi, H.; Haiqing, Z.; Jiwai, H. Identification of Tiller Angle QTLs at Heading Stage in 238 Rice Germplasms by GWAS. Preprints2023, 2023020327. https://doi.org/10.20944/preprints202302.0327.v2
Jinxin, G.; Jubin, S.; Xinyang, L.; Yuntao, Y.; Xi, H.; Haiqing, Z.; Jiwai, H. Identification of Tiller Angle QTLs at Heading Stage in 238 Rice Germplasms by GWAS. Preprints 2023, 2023020327. https://doi.org/10.20944/preprints202302.0327.v2
Jinxin, G.; Jubin, S.; Xinyang, L.; Yuntao, Y.; Xi, H.; Haiqing, Z.; Jiwai, H. Identification of Tiller Angle QTLs at Heading Stage in 238 Rice Germplasms by GWAS. Preprints2023, 2023020327. https://doi.org/10.20944/preprints202302.0327.v2
APA Style
Jinxin, G., Jubin, S., Xinyang, L., Yuntao, Y., Xi, H., Haiqing, Z., & Jiwai, H. (2023). Identification of Tiller Angle QTLs at Heading Stage in 238 Rice Germplasms by GWAS. Preprints. https://doi.org/10.20944/preprints202302.0327.v2
Chicago/Turabian Style
Jinxin, G., Zhang Haiqing and He Jiwai. 2023 "Identification of Tiller Angle QTLs at Heading Stage in 238 Rice Germplasms by GWAS" Preprints. https://doi.org/10.20944/preprints202302.0327.v2
Abstract
Tiller angle (TA) is one of the most important agronomic traits which directly affected plant architecture, photosynthetic efficiency, and planting density of rice. Although many quantitative trait loci (QTL) and associated genes for tiller angle have been identified, the detection of QTL for TA still required emphasis. In this study, 238 micro-core germplasm populations were used for genome-wide association analysis (GWAS) of the tiller angle. The frequency distribution of TA was shown to be continuous in 2018 and 2019, five QTL designated as qTA1, qTA2, qTA6, qTA9, qTA12, and two QTL designated as qTA1, qTA1-1 were detected in 2018 and 2019, respectively. These QTL explained phenotypic variation ranged from 5.94% to 12.38%. Among them, qTA2 and qTA6 are new QTL for TA, and only qTA1 was detected repeatedly in two years. 253 germplasm from the 3K Rice Genome Project were used for candidate gene and haplotypes analysis, the candidate gene and haplotypes analyzed showed LOC_Os01g67770, LOC_Os02g35180 and LOC_Os09g38130 were the candidate gene of qTA1, qTA2, and qTA9, respectively. The results of this study provide insight into the genetic improvement of plant architecture in rice.
Keywords
Rice; GWAS; tiller angle; QTL; Haplotype
Subject
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter: Gui Jinxin
Commenter's Conflict of Interests: Author