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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 161 - 174 (14page)
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초록· 키워드
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Flowering time (heading date) of the rice plant is considered an important agronomic trait for environmental adaptation and grain yield. It is controlled by multiple genes and is regulated by different environmental factors, such as day length, temperature, soil moisture, etc. So far, approximately 125 genes regulating flowering process and floral organ identity or development directly or indirectly have been reported in rice. Among these genes, Heading date 3a (Hd3a), RICE FLOWERING LOCUS T1 (RFT1), Heading date 5 (Hd5), MORF-RELATED GENE702 (MRG702), Casein kinases, CKI and CK2, Pseudo-Response Regulator 37 (PRR37), Hd gene family have been reported as the key genes regulating flowering time in rice; however, their functions are mostly inter-related. Hd3a and RFT1 that encode florigens, are known as the floral transition genes in rice. In rice, florigen immediately induces downstream genes in the shoot apical meristem (SAM) to start the transition from vegetative to reproductive phase. RFT1 gene regulates flowering time with pivotal action while Hd3a, regulates under long day conditions. The Hd5 gene regulates flowering time in variation of early heading for adaptation depending on environmental signals. MRG702, a reader protein, promotes flowering. Casein kinases, CKI and CK2 directly influence the function of the early heading regulator PRR37. Hd16/CKI hinders flowering time in the Ehd1-concerned pathway through phosphorylation of Ghd7 and PRR37. Natural variants of Hd1, PRR37, Ghd7, DTH8, Hd6, and Hd16 were found in the rice varieties that are cultivated presently in Asia and Europe, and their variants play significant roles in the down streaming of Ehd1 expression to delay flowering time in natural LD conditions.
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참고문헌 (56)
참고문헌 신청
Berr A / 2011 / Histone modifications in transcriptional activation during plant development / Biochim. Biophys. Acta 1809:567~576
Choi SC / 2014 / Trithorax group protein Oryza sativa Trithorax1 controls flowering time in rice via interaction with early heading date3 / Plant Physiol 164:1326~1337
Conti L / 2007 / TERMINAL FLOWER1 is a mobile signal controlling Arabidopsis architecture / Plant Cell 19:767~778
Doi K / 2004 / Ehd1, a B-type response regulator in rice, confers short-day promotion of flowering and controls FT-like gene expression independently of Hd1 / Genes Dev 18:926~936
Ebana K / 2011 / Uncovering of major genetic factors generating naturally occurring variation in heading date among Asian rice cultivars / Theor. Appl. Genet 122:1199~1121
Choi SC / 2014 / Trithorax group protein Oryza sativa Trithorax1 controls flowering time in rice via interaction with early heading date3 / Plant Physiol 164:1326~1337
Conti L / 2007 / TERMINAL FLOWER1 is a mobile signal controlling Arabidopsis architecture / Plant Cell 19:767~778
Doi K / 2004 / Ehd1, a B-type response regulator in rice, confers short-day promotion of flowering and controls FT-like gene expression independently of Hd1 / Genes Dev 18:926~936
Ebana K / 2011 / Uncovering of major genetic factors generating naturally occurring variation in heading date among Asian rice cultivars / Theor. Appl. Genet 122:1199~1121
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