Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class
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, herbi...
| Autores principales: | , , , , , , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2022
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/127431 |
| _version_ | 1855519421768925184 |
|---|---|
| author | Liao, Qiong Chebotarov, Dmytro Islam, Mohammad S. Quintana, Marinell R. Natividad, Mignon A. Ocampo, Marjorie de Beredo, Joseph C. Torres, Rolando O. Zhang, Zhenhua Song, Haixing Price, Adam H. McNally, Kenneth L. Henry, Amelia |
| author_browse | Beredo, Joseph C. Chebotarov, Dmytro Henry, Amelia Islam, Mohammad S. Liao, Qiong McNally, Kenneth L. Natividad, Mignon A. Ocampo, Marjorie de Price, Adam H. Quintana, Marinell R. Song, Haixing Torres, Rolando O. Zhang, Zhenhua |
| author_facet | Liao, Qiong Chebotarov, Dmytro Islam, Mohammad S. Quintana, Marinell R. Natividad, Mignon A. Ocampo, Marjorie de Beredo, Joseph C. Torres, Rolando O. Zhang, Zhenhua Song, Haixing Price, Adam H. McNally, Kenneth L. Henry, Amelia |
| author_sort | Liao, Qiong |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Journal Article |
| id | CGSpace127431 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1274312025-10-26T12:54:34Z Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class Liao, Qiong Chebotarov, Dmytro Islam, Mohammad S. Quintana, Marinell R. Natividad, Mignon A. Ocampo, Marjorie de Beredo, Joseph C. Torres, Rolando O. Zhang, Zhenhua Song, Haixing Price, Adam H. McNally, Kenneth L. Henry, Amelia rice grain crop yield roots growth rate drought physiology 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. 2022-03 2023-01-18T17:14:30Z 2023-01-18T17:14:30Z Journal Article https://hdl.handle.net/10568/127431 en Limited Access Wiley Liao, Qiong, Dmytro Chebotarov, Mohammad S. Islam, Marinell R. Quintana, Mignon A. Natividad, Marjorie De Ocampo, Joseph C. Beredo et al. 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. |
| spellingShingle | rice grain crop yield roots growth rate drought physiology Liao, Qiong Chebotarov, Dmytro Islam, Mohammad S. Quintana, Marinell R. Natividad, Mignon A. Ocampo, Marjorie de Beredo, Joseph C. Torres, Rolando O. Zhang, Zhenhua Song, Haixing Price, Adam H. McNally, Kenneth L. Henry, Amelia Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class |
| title | Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class |
| title_full | Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class |
| title_fullStr | Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class |
| title_full_unstemmed | Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class |
| title_short | Aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class |
| title_sort | aus rice root architecture variation contributing to grain yield under drought suggests a key role of nodal root diameter class |
| topic | rice grain crop yield roots growth rate drought physiology |
| url | https://hdl.handle.net/10568/127431 |
| work_keys_str_mv | AT liaoqiong ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT chebotarovdmytro ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT islammohammads ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT quintanamarinellr ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT natividadmignona ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT ocampomarjoriede ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT beredojosephc ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT torresrolandoo ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT zhangzhenhua ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT songhaixing ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT priceadamh ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT mcnallykennethl ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass AT henryamelia ausricerootarchitecturevariationcontributingtograinyieldunderdroughtsuggestsakeyroleofnodalrootdiameterclass |