Transcriptomic Analysis of Phenotypic Changes in Birch (Betula platyphylla) Autotetraploids
| Autor: | Zi-Jia Liu, Jing Jiang, Guifeng Liu, Lin Lin, Huiyu Li, Huai-Zhi Mu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
phenotype
Down-Regulation Biology Genome Article Catalysis Polyploidy Inorganic Chemistry Transcriptome lcsh:Chemistry Polyploid Gene duplication Botany Physical and Theoretical Chemistry Betula platyphylla autotetraploid transcriptome Molecular Biology Gene lcsh:QH301-705.5 Betula Spectroscopy Genetics Indoleacetic Acids Sequence Analysis RNA Gene Expression Profiling Organic Chemistry fungi food and beverages General Medicine Ethylenes biology.organism_classification Diploidy Up-Regulation Computer Science Applications Plant Leaves Gene expression profiling lcsh:Biology (General) lcsh:QD1-999 Fruit Ploidy Signal Transduction |
| Zdroj: | International Journal of Molecular Sciences, Vol 13, Iss 10, Pp 13012-13029 (2012) International Journal of Molecular Sciences; Volume 13; Issue 10; Pages: 13012-13029 International Journal of Molecular Sciences |
| ISSN: | 1422-0067 |
| Popis: | Plant breeders have focused much attention on polyploid trees because of their importance to forestry. To evaluate the impact of intraspecies genome duplication on the transcriptome, a series of Betula platyphylla autotetraploids and diploids were generated from four full-sib families. The phenotypes and transcriptomes of these autotetraploid individuals were compared with those of diploid trees. Autotetraploids were generally superior in breast-height diameter, volume, leaf, fruit and stoma and were generally inferior in height compared to diploids. Transcriptome data revealed numerous changes in gene expression attributable to autotetraploidization, which resulted in the upregulation of 7052 unigenes and the downregulation of 3658 unigenes. Pathway analysis revealed that the biosynthesis and signal transduction of indoleacetate (IAA) and ethylene were altered after genome duplication, which may have contributed to phenotypic changes. These results shed light on variations in birch autotetraploidization and help identify important genes for the genetic engineering of birch trees. |
| Databáze: | OpenAIRE |
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