Abstract
Enhanced aerenchyma development in rice under transient drought-to-waterlogged (TD-W) stress promotes root system development by promoting lateral root production. This study analyzed the quantitative trait loci (QTLs) associated with the plasticity in aerenchyma development under TD-W stress. A mapping population of 60 F2 genotypes of chromosome segment substituted lines (CSSL) derived from CSSL47 and Nipponbare crosses were grown in rootboxes and evaluated for shoot and root growth, and aerenchyma development (expressed as root porosity). The TD-W stress was imposed starting with water saturated soil condition at sowing and then to progressive drought from 0 to 21 days after sowing (DAS) prior to exposure to sudden waterlogging for another 17 days (21 to 38 DAS). We performed simple and composite interval mapping to identify QTLs for aerenchyma development. QTL associated with aerenchyma development was mapped on the short-arm of chromosome 12 and designated as qAER-12. The effect of qAER-12 on the plasticity in aerenchyma development under TD-W was significantly associated with the increase in lateral root elongation and branching. This resulted in greater root system development as expressed in total root length and consequently contributed to higher dry matter production. This qAER-12 is probably the first reported QTL associated with aerenchyma development in rice under TD-W and is a useful trait for the improvement of the adaptive capability under fluctuating soil moisture conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
A QTL for aerenchyma development under transient drought to waterlogging was mapped to chromosome 12 and named qAER-12.
- Taxon
- Rice
Oryza sativat0 - Gene
- qAER-12e0
- Outcome
- QTL associated with aerenchyma development was mapped on the short-arm of chromosome 12e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“QTL associated with aerenchyma development was mapped on the short-arm of chromosome 12 and designated as qAER-12.”
Claim · model-written summary
The qAER-12 effect on aerenchyma plasticity under TD-W was significantly associated with increased lateral root elongation.
- Taxon
- RiceOryza sativat0
- Treatment
- TD-We0
- Gene
- qAER-12e0
- Outcome
- lateral root elongatione0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“The effect of qAER-12 on the plasticity in aerenchyma development under TD-W was significantly associated with the increase in lateral root elongation and branching.”
Claim · model-written summary
The qAER-12 effect on aerenchyma plasticity under TD-W was significantly associated with increased lateral root branching.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“The effect of qAER-12 on the plasticity in aerenchyma development under TD-W was significantly associated with the increase in lateral root elongation and branching.”
Claim · model-written summary
The aerenchyma and lateral root changes resulted in greater total root length.
- Taxon
- RiceOryza sativat0
- Outcome
- total root lengthe0
- Direction
- greatere0
- Qualifier
- This resulted in greater root system developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“This resulted in greater root system development as expressed in total root length”
Claim · model-written summary
Greater root system development contributed to higher dry matter production.
- Taxon
- RiceOryza sativat0
- Outcome
- dry matter productione0
- Direction
- highere0
- Qualifier
- greater root system developmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“greater root system development as expressed in total root length and consequently contributed to higher dry matter production”
Claim · model-written summary
The authors identify qAER-12 as useful for improving adaptation to fluctuating soil moisture.
- Taxon
- riceOryza sativae0
- Gene
- qAER-12e0
- Outcome
- improvement of the adaptive capability under fluctuating soil moisture conditionse0
- Qualifier
- probably the first reported QTLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“This qAER-12 is probably the first reported QTL associated with aerenchyma development in rice under TD-W and is a useful trait for the improvement of the adaptive capability under fluctuating soil moisture conditions.”