Transcriptome profiling of indole-3-butyric acid-induced adventitious root formation in softwood cuttings of the Catalpa bungei variety 'YU-1' at different developmental stages

Peng Wang; Ya Li; Lingling Ma; Shu’an Wang; Linfang Li; Rutong Yang; Yuzhu Ma; Qing Wang

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자료유형: 학술저널

저자정보: Peng Wang (Jiangsu Province and Chinese Academy of Sciences) Ya Li (Jiangsu Province and Chinese Academy of Sciences) Lingling Ma (Jiangsu Province and Chinese Academy of Sciences) Shu’an Wang (Jiangsu Province and Chinese Academy of Sciences) Linfang Li (Jiangsu Province and Chinese Academy of Sciences) Rutong Yang (Jiangsu Province and Chinese Academy of Sciences) Yuzhu Ma (Jiangsu Province and Chinese Academy of Sciences) Qing Wang (Jiangsu Province and Chinese Academy of Sciences)

저널정보: 한국유전학회 Genes & Genomics Genes & Genomics Vol.38 No.2

발행연도: 2016.1

수록면: 145 - 162 (18page)

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Catalpa bungei is a deciduous tree native to China. It is characterized as fast growing, being highly adaptable, and having excellent wood qualities. To better understand potential mechanisms involved in adventitious root (AR) formation, we performed transcriptome analysis of softwood cuttings of C. bungei ‘Yu-1’ at three stages of AR formation using the Illumina sequencing method. Following de novo assembly, 62,955 unigenes were obtained, 31,646 (50.26 %) of which were annotated. A total of 11,100 differentially expressed genes (DEGs), including 10,200 unique and 900 common, were identified in four comparisons. Based on the all GO enrichment networks, 46 common and 7 unique GO categories were identified. Cytoskeleton was only significantly enriched in the activation period, while DNA metabolic process was only significantly enriched in the callus formation. Functional annotation analysis revealed that many of these genes were involved in phenylpropanoid biosynthesis, glycolysis, and plant hormone metabolism, suggesting potential contributions to AR formation. Interestingly, the number of DEGs involved in glycolysis decreased while the number of DEGs involved in phenylpropanoid biosynthesis increased following the AR formative process. Overall, our comprehensive transcriptional overview will prove useful, not only in the understanding of molecular networks that regulate AR formation in C. bungei, but also for exploring genes that may improve rooting rates of other trees.

참고문헌 (65)

참고문헌 신청

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Ahkami AH / 2009 / Molecular physiology of adventitious root formation in Petunia hybrida cuttings: involvement of wound response and primary metabolism / New Phytol 181:613~625

Ahkami AH / 2013 / Distribution of indole-3-acetic acid in Petunia hybrida shoot tip cuttings and relationship between auxin transport, carbohydrate metabolism and adventitious root formation / Planta 238:499~517

Ahkami A / 2014 / Comprehensive transcriptome analysis unravels the existence of crucial genes regulating primary metabolism during adventitious root formation in Petunia hybrida / PLoS One 9:e100997

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