Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs
In rainfed lowland rice ecosystem, rice plants are often exposed to alternating recurrences of waterlogging and drought due to erratic rainfall. Such soil moisture fluctuation (SMF) which is completely different from simple or progressive drought could be stressful for plant growth, thereby causing...
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2018-04-01
|
| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/1343943X.2018.1446759 |
| _version_ | 1818585455743991808 |
|---|---|
| author | Stella Owusu-Nketia Yoshiaki Inukai Satomi Ohashi Roel Rodriguez Suralta Kazuyuki Doi Shiro Mitsuya Mana Kano-Nakata Jonathan Manito Niones Dinh Thi Ngoc Nguyen Kabuki Takuya Daigo Makihara Akira Yamauchi |
| author_facet | Stella Owusu-Nketia Yoshiaki Inukai Satomi Ohashi Roel Rodriguez Suralta Kazuyuki Doi Shiro Mitsuya Mana Kano-Nakata Jonathan Manito Niones Dinh Thi Ngoc Nguyen Kabuki Takuya Daigo Makihara Akira Yamauchi |
| author_sort | Stella Owusu-Nketia |
| collection | DOAJ |
| description | In rainfed lowland rice ecosystem, rice plants are often exposed to alternating recurrences of waterlogging and drought due to erratic rainfall. Such soil moisture fluctuation (SMF) which is completely different from simple or progressive drought could be stressful for plant growth, thereby causing reduction in yield. Root plasticity is one of the key traits that play important roles for plant adaptation under such conditions. This study aimed to evaluate root plasticity expression and its functional roles in dry matter production and yield under SMF using Nipponbare, KDML 105 and three backcross inbred lines (BILs) and to identify QTL(s) associated with root traits in response to SMF at two growth stages using Nipponbare/KDML105 F2 plants. A BIL, G3-3 showed higher shoot dry matter production and yield than Nipponbare due to its greater ability to maintain stomatal conductance concomitant with greater root system development caused by promoted production of nodal and lateral roots under SMF. QTLs were identified for total nodal root length, total lateral root length, total root length, number of nodal roots, and branching index under SMF at vegetative and reproductive stages. The QTLs detected at vegetative and reproductive stages were different. We discuss here that relationship between root system of G3-3 and the detected QTLs. Therefore, G3-3 and the identified QTLs could be useful genetic materials in breeding program for improving the adaptation of rice plants in target rainfed lowland areas. |
| first_indexed | 2024-12-16T08:37:21Z |
| format | Article |
| id | doaj.art-4fe168bd851a4014bc46380ef925df11 |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-16T08:37:21Z |
| publishDate | 2018-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-4fe168bd851a4014bc46380ef925df112022-12-21T22:37:45ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082018-04-0121210612210.1080/1343943X.2018.14467591446759Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLsStella Owusu-Nketia0Yoshiaki Inukai1Satomi Ohashi2Roel Rodriguez Suralta3Kazuyuki Doi4Shiro Mitsuya5Mana Kano-Nakata6Jonathan Manito Niones7Dinh Thi Ngoc Nguyen8Kabuki Takuya9Daigo Makihara10Akira Yamauchi11Nagoya UniversityNagoya UniversityNagoya UniversityPhilippine Rice Research Institute (PhilRice)Nagoya UniversityNagoya UniversityNagoya UniversityPhilRiceNagoya UniversityNagoya UniversityNagoya UniversityNagoya UniversityIn rainfed lowland rice ecosystem, rice plants are often exposed to alternating recurrences of waterlogging and drought due to erratic rainfall. Such soil moisture fluctuation (SMF) which is completely different from simple or progressive drought could be stressful for plant growth, thereby causing reduction in yield. Root plasticity is one of the key traits that play important roles for plant adaptation under such conditions. This study aimed to evaluate root plasticity expression and its functional roles in dry matter production and yield under SMF using Nipponbare, KDML 105 and three backcross inbred lines (BILs) and to identify QTL(s) associated with root traits in response to SMF at two growth stages using Nipponbare/KDML105 F2 plants. A BIL, G3-3 showed higher shoot dry matter production and yield than Nipponbare due to its greater ability to maintain stomatal conductance concomitant with greater root system development caused by promoted production of nodal and lateral roots under SMF. QTLs were identified for total nodal root length, total lateral root length, total root length, number of nodal roots, and branching index under SMF at vegetative and reproductive stages. The QTLs detected at vegetative and reproductive stages were different. We discuss here that relationship between root system of G3-3 and the detected QTLs. Therefore, G3-3 and the identified QTLs could be useful genetic materials in breeding program for improving the adaptation of rice plants in target rainfed lowland areas.http://dx.doi.org/10.1080/1343943X.2018.1446759QTLrainfed lowlandriceroot plasticity |
| spellingShingle | Stella Owusu-Nketia Yoshiaki Inukai Satomi Ohashi Roel Rodriguez Suralta Kazuyuki Doi Shiro Mitsuya Mana Kano-Nakata Jonathan Manito Niones Dinh Thi Ngoc Nguyen Kabuki Takuya Daigo Makihara Akira Yamauchi Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs Plant Production Science QTL rainfed lowland rice root plasticity |
| title | Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs |
| title_full | Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs |
| title_fullStr | Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs |
| title_full_unstemmed | Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs |
| title_short | Root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety, Nipponbare carrying introgressed segments from KDML105 and detection of the associated QTLs |
| title_sort | root plasticity under fluctuating soil moisture stress exhibited by backcross inbred line of a rice variety nipponbare carrying introgressed segments from kdml105 and detection of the associated qtls |
| topic | QTL rainfed lowland rice root plasticity |
| url | http://dx.doi.org/10.1080/1343943X.2018.1446759 |
| work_keys_str_mv | AT stellaowusunketia rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT yoshiakiinukai rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT satomiohashi rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT roelrodriguezsuralta rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT kazuyukidoi rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT shiromitsuya rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT manakanonakata rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT jonathanmanitoniones rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT dinhthingocnguyen rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT kabukitakuya rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT daigomakihara rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls AT akirayamauchi rootplasticityunderfluctuatingsoilmoisturestressexhibitedbybackcrossinbredlineofaricevarietynipponbarecarryingintrogressedsegmentsfromkdml105anddetectionoftheassociatedqtls |