Gibberellin Regulates Pollen Viability and Pollen Tube Growth in Rice
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- Aya Koichiro
- Biosci. and Biotech. Cent., Nagoya Univ.
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- Ueguchi-Tanaka Miyako
- Biosci. and Biotech. Cent., Nagoya Univ.
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- Chhun Tory
- Biosci. and Biotech. Cent., Nagoya Univ.
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- Asano Kenji
- Biosci. and Biotech. Cent., Nagoya Univ.
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- Yamamoto Eiji
- Biosci. and Biotech. Cent., Nagoya Univ.
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- Watanabe Masao
- Graduate School of Life Science, Tohoku Univ.
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- Kitano Hidemi
- Biosci. and Biotech. Cent., Nagoya Univ.
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- Ashikari Motoyuki
- Biosci. and Biotech. Cent., Nagoya Univ.
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- Matsuoka Makoto
- Biosci. and Biotech. Cent., Nagoya Univ.
Bibliographic Information
- Other Title
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- イネにおけるジベレリン欠損変異体と非感受性変異体における遺伝様式の違い
Abstract
Gibberellins (GAs) have many biological roles in higher plants. We performed genetic analysis on rice GA-related mutants, including GA-deficient and -insensitive mutants. The analysis revealed that rice GA-deficient mutations are not transmitted as Mendelian traits to the next generation following the self-pollination of F1 heterozygous plants, although GA-insensitive mutations are transmitted normally. In order to understand these differences in transmission in GA-deficient and GA-insensitive mutants, we examined the effect of GA on microsporogenesis and pollen-tube elongation in rice using new GA-deficient and -insensitive mutants that produce semi-fertile flowers. Phenotypic analysis revealed that the GA-deficient mutant, rpe1, is defective in pollen-tube elongation, resulting in a low fertilization frequency, whereas the GA-insensitive semi-dominant mutant Slr1-d3 is mainly defective in viable pollen production. We also examined the quantitative RT-PCR analysis of GA-biosynthesis and signal-related genes. Based on the observations, we will discuss the ways of transmissions of these GA-related mutations.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2008 (0), 0350-0350, 2008
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390001205632639360
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- NII Article ID
- 130006994429
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed