Sequencing and annotation of the evergrowing locus in peach [Prunus persica (L.) Batsch] reveals a cluster of six MADS-box transcription factors as candidate genes for regulation of terminal bud formation

Sequencing and annotation of the evergrowing locus in peach [Prunus persica (L.) Batsch] reveals a cluster of six MADS-box transcription factors as candidate genes for regulation of terminal bud formation

Buds are specialized structures that protect fragile meristematic regions during dormancy and are part of the mechanism that plants use to survive unfavorable environmental conditions such as low temperature or dessication stress. The evergrowing (evg) mutant of peach [Prunus persica (L.) Batsch] do...

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Bibliographic Details
Published in:Tree genetics & genomes Vol. 4; no. 3; pp. 495 - 507
Main Authors: Bielenberg, Douglas Gary, Wang, Ying (Eileen), Li, Zhigang, Zhebentyayeva, Tetyana, Fan, Shenghua, Reighard, Gregory Lynn, Scorza, Ralph, Abbott, Albert Glenn
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Berlin/Heidelberg : Springer-Verlag 01-07-2008
Springer-Verlag
Springer Nature B.V
Subjects:
amino acid sequences
Biomedical and Life Sciences
Biotechnology
Buds
chromosome mapping
Drying
Environmental conditions
Forestry
fruit trees
Genomes
Ipomoea batatas
Life Sciences
Low temperature
MADS-box proteins
molecular sequence data
Mutants
Original Paper
peaches
Plant Breeding/Biotechnology
plant development
Plant Genetics and Genomics
plant proteins
Potatoes
Prunus
Prunus persica
sequence analysis
Solanum tuberosum
transcription factors
Tree Biology
Bud
Dormancy
MADS-box
Evergrowing
Peach
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Summary:Buds are specialized structures that protect fragile meristematic regions during dormancy and are part of the mechanism that plants use to survive unfavorable environmental conditions such as low temperature or dessication stress. The evergrowing (evg) mutant of peach [Prunus persica (L.) Batsch] does not form terminal vegetative buds in response to dormancy-inducing conditions such as short days and low temperatures, and the terminal meristems maintain constant growth (leaf addition and internode elongation). We genetically mapped the evg trait and identified the corresponding genomic region in a wild-type genome. We sequenced and annotated the 132-kb region. Nineteen genes were predicted to be in the sequenced region. Ten of the predicted genes were demonstrated to be expressed in the wild-type germplasm but six of these were not expressed in mutant tissues. These six genes are a cluster of MIKC-type MADS-box transcription factors similar to genes from Ipomoea batatas and Solanum tuberosum MADS-box, which also regulate meristem growth in vegetative tissues. A 41,746-bp deletion is present in this region of the mutant genome which results in the loss of all or part of four of the six MADS-box genes. The six MADS-box genes that are not expressed in the mutant are candidates for the regulation of growth cessation and terminal bud formation in peach in response to dormancy-inducing conditions and have been named dormancy-associated MADS-box (DAM) genes.
Bibliography:http://hdl.handle.net/10113/16480
http://dx.doi.org/10.1007/s11295-007-0126-9
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ISSN:1614-2942
1614-2950
DOI:10.1007/s11295-007-0126-9