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COMPARATIVE ANALYSIS OF THE TRANSCRIPTOME OF CASTANEA PUMILA VAR. PUMILA

Article number
1019_8
Pages
55 – 60
Language
English
Abstract
The biogeographical history of North American Castanea species, C. dentate (American chestnut) and C. pumila var. pumila (Allegheny chinkapin) has been complicated by their distribution in similar habitats in the southern region of the species’ range, occurrence of natural hybridization and incidence of chestnut blight.
Transcriptome sequencing of C. pumila var. pumila was initiated for comparative analyses with the C. dentate and C. mollissima (Chinese chestnut) transcriptome and development of species-specific markers.
Over 47,000 contigs were generated with an average length of 670 bp.
Gene ontology annotation showed that the C. pumila transcriptome covers a wide range of biological processes, with 9% of the identified genes in response to abiotic and biotic stimuli.
Transcript abundance was especially high in genes associated with several well-known plant defense pathways such as phenylpropanoid metabolism, phytohormone signaling and hypersensitive response pathways.
A large fraction of the contigs (20.8%) matched chloroplast genes and a C. pumila specific chloroplast genome was assembled.

Publication
V International Chestnut Symposium
Authors
F. Dane, X. Li, K. Kocot, L. Goertzen
Keywords
Castanea pumila var. pumila, Allegheny chinkapin, transcriptome, gene ontology
Full text
https://doi.org/10.17660/ActaHortic.2014.1019.8
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