-
Functional roles of root plasticity and its contribution to water uptake and dry matter production of CSSLs with the genetic background of KDML105 under soil moisture fluctuation
- Back
Metadata
Document Title
Functional roles of root plasticity and its contribution to water uptake and dry matter production of CSSLs with the genetic background of KDML105 under soil moisture fluctuation
Author
Owusu-Nketia S.,Siangliw J.L.,Siangliw M.,Toojinda T.,Vanavichit A.,Ratsameejanphen N.,Ruangsiri M.,Sriwiset S.,Suralta R.R.,Inukai Y.,Mitsuya S.,Kano-Nakata M.,Nguyen D.T.N.,Takuya K.,Yamauchi A.
Name from Authors Collection
Affiliations
Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan; Rice Gene Discovery Unit, BIOTEC, NSTDA, Kasetsart University, Kamphangsaen Campus, Nakhon Pathom, Thailand; Agronomy, Soils and Plant Physiology Division, Philippine Rice Research Institute (PhilRice), Muñoz, Philippines; International Center for Research and Education in Agriculture, Nagoya University, Nagoya, Japan; Institute for Advanced Research, Nagoya University, Nagoya, Japan; Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi, Viet Nam
Type
Article
Source Title
Plant Production Science
ISSN
1343943X
Year
2018
Volume
21
Issue
3
Open Access
All Open Access, Gold
Publisher
Taylor and Francis Ltd.
DOI
10.1080/1343943X.2018.1477509
Abstract
Soil moisture fluctuation (SMF) stress due to erratic rainfall in rainfed lowland (RFL) rice ecosystems negatively affect production. Under such condition, root plasticity is one of the key traits that play important roles for plant adaptation. This study aimed to evaluate root plasticity expression and its functional roles in water uptake, dry matter production and yield under SMF using three chromosome segment substitution lines (CSSLs) with major genetic background of KDML105 and a common substituted segment in chromosome 8. The CSSLs showed greater shoot dry matter production than KDML105 under SMF, which was attributed to the maintenance of stomatal conductance resulting in higher grain yield. The root system development based on total root length of the CSSLs were significantly higher than that of KDML105 due to the promoted production of nodal and lateral roots. These results implied that the common substituted segments in chromosome 8 of the 3 CSSLs may be responsible for the expression of their root plasticity under SMF and contributed to the increase in water uptake and consequently dry matter production and yield. These CSSLs could be used as a good source of genetic material for drought resistance breeding programs targeting rainfed lowland condition with fluctuating soil moisture environments and for further genetic studies to elucidate mechanisms underlying root plasticity. © 2018, © 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
Rice University; Japan Society for the Promotion of Science; Japan Science and Technology Agency; Japan International Cooperation Agency; Kasetsart University; Science and Technology Research Partnership for Sustainable Development
License
CC BY-NC
Rights
Taylor & Francis Group
Publication Source
Scopus