Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class

Qiong Liao; Dmytro Chebotarov; Mohammad S Islam; Marinell R Quintana; Mignon A Natividad; Marjorie De Ocampo; Joseph C Beredo; Rolando O Torres; Zhenhua Zhang; Haixing Song; Adam H Price; Kenneth L McNally; Amelia Henry

doi:10.1111/pce.14272

Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class

Qiong Liao, Dmytro Chebotarov, Mohammad S Islam, Marinell R Quintana, Mignon A Natividad, Marjorie De Ocampo, Joseph C Beredo, Rolando O Torres, Zhenhua Zhang, Haixing Song, Adam H Price, Kenneth L McNally, Amelia Henry^* (Corresponding Author)

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The aus rice variety group originated in stress-prone regions and is a promising source for the development of new stress-tolerant rice cultivars. In this study, an aus panel (~220 genotypes) was evaluated in field trials under well-watered and drought conditions and in the greenhouse (basket, herbicide and lysimeter studies) to investigate relationships between grain yield and root architecture, and to identify component root traits behind the composite trait of deep root growth. In the field trials, high and stable grain yield was positively related to high and stable deep root growth (r = 0.16), which may indicate response to within-season soil moisture fluctuations (i.e., plasticity). When dissecting component traits related to deep root growth (including angle, elongation and branching), the number of nodal roots classified as 'large-diameter' was positively related to deep root growth (r = 0.24), and showed the highest number of colocated genome-wide association study (GWAS) peaks with grain yield under drought. The role of large-diameter nodal roots in deep root growth may be related to their branching potential. Two candidate loci that colocated for yield and root traits were identified that showed distinct haplotype distributions between contrasting yield/stability groups and could be good candidates to contribute to rice improvement.

Original language	English
Pages (from-to)	854-870
Number of pages	17
Journal	Plant, Cell & Environment
Volume	45
Issue number	3
Early online date	17 Feb 2022
DOIs	https://doi.org/10.1111/pce.14272
Publication status	Published - 1 Mar 2022

Bibliographical note

ACKNOWLEDGEMENTS
We thank L. Holongbayan, N. Turingan, N. Driz, A. Los Añes, N. Sadiasa, A. Reyes, D. Morales, P. Zambrano, T. Batoto, E. Mico, L. Satioquia, M. Manalili and C.A. Centeno for technical support. We also acknowledge R. Serraj for initiating the aus field trials, M. Wissuwa and J.G. Monroe for contributions to the 2018 field trial, J. Xu and D. Pisano for advice on statistical analysis, Y. Uga for advice on the basket study and I. Ajmera for helpful discussions about nodal roots. This study was supported by the Generation Challenge Program (GCP) project G3008.06, 'Targeting Drought-Avoidance Root Traits to Enhance Rice Productivity under Water-Limited Environments'. Q. Liao was supported by the Chinese Scholarship Council (CSC) and 'Hengygang Guiding Plan Project 2020jh022798' award. M. S. Islam was supported by a Bangabandhu Fellowship on Science and ICT from the Ministry of Science and Technology, Bangladesh.

Keywords

Chromosome Mapping
Droughts
Edible Grain
Genome-Wide Association Study
Oryza/physiology

Access to Document

10.1111/pce.14272Licence: Unspecified

Data from: Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class
Liao, Q. (Creator), Chebotarov, D. (Creator), Islam, M. S. (Creator), Quintana, M. R. (Creator), Natividad, M. A. (Creator), De Ocampo1, M. (Creator), Beredo, J. C. (Creator), Torres, R. O. (Creator), Zhang, Z. (Creator), Song, H. (Creator), Price, A. (Creator), McNally, K. L. (Creator), Henry, A. (Contributor) & Henry, A. (Contributor), Harvard Dataverse, 2022
DOI: 10.7910/dvn/mcp17s, https://dataverse.harvard.edu/citation?persistentId=doi:10.7910/DVN/MCP17S
Dataset

Cite this

Liao, Q., Chebotarov, D., Islam, M. S., Quintana, M. R., Natividad, M. A., De Ocampo, M., Beredo, J. C., Torres, R. O., Zhang, Z., Song, H., Price, A. H., McNally, K. L., & Henry, A. (2022). Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class. Plant, Cell & Environment, 45(3), 854-870. https://doi.org/10.1111/pce.14272

Liao, Q, Chebotarov, D, Islam, MS, Quintana, MR, Natividad, MA, De Ocampo, M, Beredo, JC, Torres, RO, Zhang, Z, Song, H, Price, AH, McNally, KL & Henry, A 2022, 'Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class', Plant, Cell & Environment, vol. 45, no. 3, pp. 854-870. https://doi.org/10.1111/pce.14272

@article{6b605bd92c7341debc499f27a7d608a6,

title = "Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class",

abstract = "The aus rice variety group originated in stress-prone regions and is a promising source for the development of new stress-tolerant rice cultivars. In this study, an aus panel (~220 genotypes) was evaluated in field trials under well-watered and drought conditions and in the greenhouse (basket, herbicide and lysimeter studies) to investigate relationships between grain yield and root architecture, and to identify component root traits behind the composite trait of deep root growth. In the field trials, high and stable grain yield was positively related to high and stable deep root growth (r = 0.16), which may indicate response to within-season soil moisture fluctuations (i.e., plasticity). When dissecting component traits related to deep root growth (including angle, elongation and branching), the number of nodal roots classified as 'large-diameter' was positively related to deep root growth (r = 0.24), and showed the highest number of colocated genome-wide association study (GWAS) peaks with grain yield under drought. The role of large-diameter nodal roots in deep root growth may be related to their branching potential. Two candidate loci that colocated for yield and root traits were identified that showed distinct haplotype distributions between contrasting yield/stability groups and could be good candidates to contribute to rice improvement.",

keywords = "Chromosome Mapping, Droughts, Edible Grain, Genome-Wide Association Study, Oryza/physiology",

author = "Qiong Liao and Dmytro Chebotarov and Islam, {Mohammad S} and Quintana, {Marinell R} and Natividad, {Mignon A} and {De Ocampo}, Marjorie and Beredo, {Joseph C} and Torres, {Rolando O} and Zhenhua Zhang and Haixing Song and Price, {Adam H} and McNally, {Kenneth L} and Amelia Henry",

note = "ACKNOWLEDGEMENTS We thank L. Holongbayan, N. Turingan, N. Driz, A. Los A{\~n}es, N. Sadiasa, A. Reyes, D. Morales, P. Zambrano, T. Batoto, E. Mico, L. Satioquia, M. Manalili and C.A. Centeno for technical support. We also acknowledge R. Serraj for initiating the aus field trials, M. Wissuwa and J.G. Monroe for contributions to the 2018 field trial, J. Xu and D. Pisano for advice on statistical analysis, Y. Uga for advice on the basket study and I. Ajmera for helpful discussions about nodal roots. This study was supported by the Generation Challenge Program (GCP) project G3008.06, 'Targeting Drought-Avoidance Root Traits to Enhance Rice Productivity under Water-Limited Environments'. Q. Liao was supported by the Chinese Scholarship Council (CSC) and 'Hengygang Guiding Plan Project 2020jh022798' award. M. S. Islam was supported by a Bangabandhu Fellowship on Science and ICT from the Ministry of Science and Technology, Bangladesh.",

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language = "English",

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AU - Liao, Qiong

AU - Chebotarov, Dmytro

AU - Islam, Mohammad S

AU - Quintana, Marinell R

AU - Natividad, Mignon A

AU - De Ocampo, Marjorie

AU - Beredo, Joseph C

AU - Torres, Rolando O

AU - Zhang, Zhenhua

AU - Song, Haixing

AU - Price, Adam H

AU - McNally, Kenneth L

AU - Henry, Amelia

N1 - ACKNOWLEDGEMENTS We thank L. Holongbayan, N. Turingan, N. Driz, A. Los Añes, N. Sadiasa, A. Reyes, D. Morales, P. Zambrano, T. Batoto, E. Mico, L. Satioquia, M. Manalili and C.A. Centeno for technical support. We also acknowledge R. Serraj for initiating the aus field trials, M. Wissuwa and J.G. Monroe for contributions to the 2018 field trial, J. Xu and D. Pisano for advice on statistical analysis, Y. Uga for advice on the basket study and I. Ajmera for helpful discussions about nodal roots. This study was supported by the Generation Challenge Program (GCP) project G3008.06, 'Targeting Drought-Avoidance Root Traits to Enhance Rice Productivity under Water-Limited Environments'. Q. Liao was supported by the Chinese Scholarship Council (CSC) and 'Hengygang Guiding Plan Project 2020jh022798' award. M. S. Islam was supported by a Bangabandhu Fellowship on Science and ICT from the Ministry of Science and Technology, Bangladesh.

PY - 2022/3/1

Y1 - 2022/3/1

N2 - The aus rice variety group originated in stress-prone regions and is a promising source for the development of new stress-tolerant rice cultivars. In this study, an aus panel (~220 genotypes) was evaluated in field trials under well-watered and drought conditions and in the greenhouse (basket, herbicide and lysimeter studies) to investigate relationships between grain yield and root architecture, and to identify component root traits behind the composite trait of deep root growth. In the field trials, high and stable grain yield was positively related to high and stable deep root growth (r = 0.16), which may indicate response to within-season soil moisture fluctuations (i.e., plasticity). When dissecting component traits related to deep root growth (including angle, elongation and branching), the number of nodal roots classified as 'large-diameter' was positively related to deep root growth (r = 0.24), and showed the highest number of colocated genome-wide association study (GWAS) peaks with grain yield under drought. The role of large-diameter nodal roots in deep root growth may be related to their branching potential. Two candidate loci that colocated for yield and root traits were identified that showed distinct haplotype distributions between contrasting yield/stability groups and could be good candidates to contribute to rice improvement.

AB - The aus rice variety group originated in stress-prone regions and is a promising source for the development of new stress-tolerant rice cultivars. In this study, an aus panel (~220 genotypes) was evaluated in field trials under well-watered and drought conditions and in the greenhouse (basket, herbicide and lysimeter studies) to investigate relationships between grain yield and root architecture, and to identify component root traits behind the composite trait of deep root growth. In the field trials, high and stable grain yield was positively related to high and stable deep root growth (r = 0.16), which may indicate response to within-season soil moisture fluctuations (i.e., plasticity). When dissecting component traits related to deep root growth (including angle, elongation and branching), the number of nodal roots classified as 'large-diameter' was positively related to deep root growth (r = 0.24), and showed the highest number of colocated genome-wide association study (GWAS) peaks with grain yield under drought. The role of large-diameter nodal roots in deep root growth may be related to their branching potential. Two candidate loci that colocated for yield and root traits were identified that showed distinct haplotype distributions between contrasting yield/stability groups and could be good candidates to contribute to rice improvement.

KW - Chromosome Mapping

KW - Droughts

KW - Edible Grain

KW - Genome-Wide Association Study

KW - Oryza/physiology

U2 - 10.1111/pce.14272

DO - 10.1111/pce.14272

M3 - Article

C2 - 35099814

SN - 0140-7791

VL - 45

SP - 854

EP - 870

JO - Plant, Cell & Environment

JF - Plant, Cell & Environment

IS - 3

ER -

Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class

Abstract

Bibliographical note

Keywords

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Data from: Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class

Cite this