QTL analysis for carbon assimilate translocation-related traits during maturity in rice (<i>Oryza sativa</i> L.)
-
- Phung Huan Danh
- Graduate School of Bioagricultural Sciences, Nagoya University
-
- Sugiura Daisuke
- Graduate School of Bioagricultural Sciences, Nagoya University
-
- Sunohara Hidehiko
- Graduate School of Bioagricultural Sciences, Nagoya University
-
- Makihara Daigo
- International Center for Research and Education in Agriculture, Nagoya University
-
- Kondo Motohiko
- Graduate School of Bioagricultural Sciences, Nagoya University
-
- Nishiuchi Shunsaku
- Graduate School of Bioagricultural Sciences, Nagoya University
-
- Doi Kazuyuki
- Graduate School of Bioagricultural Sciences, Nagoya University
Bibliographic Information
- Other Title
-
- QTL analysis for carbon assimilate translocation-related traits during maturity in rice (Oryza sativa L.)
Search this article
Abstract
<p>Problems with carbon assimilate translocation from source organs to sink (grains) during ripening cause yield losses in rice (Oryza sativa L.), especially in high-sink-capacity varieties. We conducted a genetic analysis of traits related to such translocation by using recombinant inbred lines. Shoot weight (SW) of T65, a japonica parent, was retained from heading to late maturity, whereas that of DV85, an aus parent, was greater than that of T65 at 5 days after heading (DAH) and then decreased until 20 DAH. This difference was observed clearly under standard-fertilizer but not low-fertilizer conditions. Non-structural carbohydrate (NSC) contents in the parents showed a tendency similar to that for SW. QTL analysis revealed pleiotropic QTLs on chromosomes 5 and 10, probably by associations with heading date QTLs. A QTL associated with harvest index and NSC at 5 DAH was detected on chromosome 1. By considering the temporal changes of the traits, we found a QTL for decrease in SW on chromosome 11; the DV85 allele of this QTL facilitated assimilate translocation and suppressed biomass growth. A suggestive QTL for NSC decrease was located on chromosome 2. These QTLs could represent potential targets for controlling carbon assimilate translocation in breeding programs.</p>
Journal
-
- Breeding Science
-
Breeding Science 69 (2), 289-296, 2019
Japanese Society of Breeding
- Tweet
Details 詳細情報について
-
- CRID
- 1390282763129013120
-
- NII Article ID
- 130007679171
-
- NII Book ID
- AA11317194
-
- ISSN
- 13473735
- 13447610
-
- NDL BIB ID
- 029855298
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed