Towards development of drought tolerant upland rice through international research collaborations from gene discovery to trait evaluation: in case of OsNAC6 gene as example

JIRCAS Working Report
ISSN 1341710X
書誌レコードID(総合目録DB) AA11159468
Extreme weather events such as droughts and heat waves are likely to become more common in recent warmer climate. Thus, development of drought tolerant rice varieties has been an urgent research goal since rice is the staple food of many people on planet. To speed up development of drought tolerant rice varieties, unique research collaborations between advanced institutions and international research organization were developed and led by Japan International Research Center for Agricultural Sciences (JIRCAS). This collaboration brought diverse expertise together to facilitate a product development pipeline from gene totrait evaluation under target field environments. One of genes tested in this study was OsNAC6 gene. Twenty-eight independent transgenic lines that possessed homozygous single copy of introduced OsNAC6 gene were generated from a commercial tropical japonica variety, Curinga. Evaluation of the transgenic lines undercontrolled and confined rainfed conditions in Colombia revealed superior performance of some transgenic lines in grain yield compared with non-transgenic plants. The transgenic lines of other genetic backgrounds, NERICA1 and NERICA4, also showed increased grain yield under the rainfed conditions. The results strongly suggest that the gene works regardless of genetic background as common genetic component fordrought tolerance in rice under field conditions leading to increased grain yield.
作成者 Michael Gomez Selvaraj Takuma Ishizaki Kazuo Nakashima Kazuko Yamaguchi-Shinozaki Beata Dedicova Jagadish Rane Milton Valencia Chavez Alba Lucia Manabu Ishitani
著者キーワード upland rice trait evaluation drought tolerance transgenic approach
公開者 Japan International Research Center for Agricultural Sciences
資源タイプ Technical Report
国立情報学研究所メタデータ主題語彙集(資源タイプ) Technical Report
開始ページ 35
終了ページ 44
言語 eng