The tomato B-type cyclin gene, SlCycB2, plays key roles in reproductive organ development, trichome initiation, terpenoids biosynthesis and Prodenia litura defense

The tomato B-type cyclin gene, SlCycB2, plays key roles in reproductive organ development,... •SlCycB2-OE led to abnormal flower with the unclosed stamen, shortened style and aberrant pollen.•Nearly all non-glandular trichomes (including type III and V), as well as the glandular ones of type I and type VI were disappeared in SlCycB2-OE lines. On the contrary, suppression of SlCycB2 could promote type III and type V trichomes formation.•The production of monoterpene and sesquiterpene were significantly decreased in SlCycB2-OE plants, which thus caused the reduction of the defense against Prodenia litura.•Transcriptome profile demonstrated that the differentially expressed genes mainly participate in the biosynthesis of terpenes, cutin, suberine and wax.•Several homologs of SlCycB2 gene in many plants, such as SlCycB3 in tomato, NtCycB2 in tobacco, AtCycB2 in Arabidopsis, have similar regulatory functions in trichome formation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Science Elsevier

The tomato B-type cyclin gene, SlCycB2, plays key roles in reproductive organ development, trichome initiation, terpenoids biosynthesis and Prodenia litura defense

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0168-9452
D.O.I.
10.1016/j.plantsci.2017.05.006
Publisher site
See Article on Publisher Site

Abstract

•SlCycB2-OE led to abnormal flower with the unclosed stamen, shortened style and aberrant pollen.•Nearly all non-glandular trichomes (including type III and V), as well as the glandular ones of type I and type VI were disappeared in SlCycB2-OE lines. On the contrary, suppression of SlCycB2 could promote type III and type V trichomes formation.•The production of monoterpene and sesquiterpene were significantly decreased in SlCycB2-OE plants, which thus caused the reduction of the defense against Prodenia litura.•Transcriptome profile demonstrated that the differentially expressed genes mainly participate in the biosynthesis of terpenes, cutin, suberine and wax.•Several homologs of SlCycB2 gene in many plants, such as SlCycB3 in tomato, NtCycB2 in tobacco, AtCycB2 in Arabidopsis, have similar regulatory functions in trichome formation.

Journal

Plant ScienceElsevier

Published: Sep 1, 2017

References

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