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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 793 - 803 (11page)
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초록· 키워드
오류제보하기
Herbaceous model species, especially Arabidopsis has provided a wealth of information about the genes involved in floral induction and development of inflorescences and flowers. While the genus Populus is an important model system for the molecular biology of woody plant. These two genuses differ in many ways. This study was designed to improve understanding of flower development in poplar at a system level, as its regulatory pathway to a large extent remains poorly known, owing to the presently limited mutant pool. To address this issue, a poplar GeneChip was employed to detect genes expressed during the whole floral developmental process. Using the expressed floral genes, a systematic gene network was constructed with the aid of functional association with Arabidopsis. The results suggested that autonomous, gibberellin, vernalization, photoperiod, ethylene, brassinosteroid, stress-induced and floral suppression pathways are involved in poplar flowering. Modularity analysis revealed several pathways in common with Arabidopsis, such as autonomous, gibberellin, vernalization and photoperiod pathways. In addition, brassinosteroid, stress-induced and floral suppression pathways were implicated as additional novel pathways. Notably, a difference in vernalization between Arabidopsis and poplar was revealed. Autonomous, gibberellin, vernalization, photoperiod, ethylene, brassinosteroid, stress-induced and floral suppression pathways integrated into a systematic gene network in floral development of poplar. Compared to Arabidopsis, brassinosteroid, stressinduced and floral suppression pathways are additional in poplar, and FLC is absent in vernalization pathway in poplar. Preliminary conclusions drawn here provide a basis for both identification of key genes and elucidation of molecular mechanisms involved in poplar floral development.
목차
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참고문헌 (57)
참고문헌 신청
Achard P / 2006 / Integration of plant responses to environmentally activated phytohormonal signals / Science 311:91~94
Achard P / 2007 / The plant stress hormone ethylene controls floral transition via DELLA-dependent regulation of floral meristem-identity genes / Proc Natl Acad Sci USA 104:6484~6489
Alabadi D / 2001 / Reciprocal regulation between TOC1 and LHY/CCA1within the Arabidopsis circadian clock / Science 293:880
Alexandre CM / 2008 / FLC or not FLC: the other side of vernalization / J Exp Bot 59:1127~1135
Amasino R / 2010 / Seasonal and developmental timing of flowering / Plant J 61:1001~1013
Achard P / 2007 / The plant stress hormone ethylene controls floral transition via DELLA-dependent regulation of floral meristem-identity genes / Proc Natl Acad Sci USA 104:6484~6489
Alabadi D / 2001 / Reciprocal regulation between TOC1 and LHY/CCA1within the Arabidopsis circadian clock / Science 293:880
Alexandre CM / 2008 / FLC or not FLC: the other side of vernalization / J Exp Bot 59:1127~1135
Amasino R / 2010 / Seasonal and developmental timing of flowering / Plant J 61:1001~1013
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