Inversion induced Manihot esculenta stem tubers express key tuberization genes; Mec1, RZF, SuSy1 and PIN2

Plant Signaling & Behavior
Valerie Bowrin, Fedora Sutton

Abstract

Cassava (M. esculenta) gives rise to unique underground stem tubers when stem cuttings are planted in an inverted orientation. The nutritional profile of the stem and root tubers were similar except for protein content which was higher in stem than in root tubers. RT-PCR revealed that several key genes (Mec1, RZF, SuSy1 and PIN2) involved in root tuberization were also expressed in these stem tubers. At five weeks post planting, these genes were expressed in roots and underground stems as in the mature tubers. However at 15 weeks post planting, they were expressed in both root and stem tubers but not in adventitious roots or in the non-tuberized stems. Expression of, the root auxin efflux carrier gene PIN2 in the stem tubers indicate a role for auxin in the stem tuberization process.

References

Dec 8, 2004·Protein and Peptide Letters·Cláudia Regina Batista de SouzaJúlio Cézar de Mattos Cascardo
Dec 19, 2006·Plant Biotechnology Journal·Bjorn KloostermanChristian W Bachem
Nov 14, 2008·Proceedings of the National Academy of Sciences of the United States of America·Jürgen Kleine-VehnJirí Friml
Jul 25, 2012·Phytochemical Analysis : PCA·Valerie BowrinGrace Sirju-Charran
Aug 21, 2012·Plant Signaling & Behavior·Efstathios RoumeliotisChristian W B Bachem
Apr 16, 2013·Journal of Experimental Botany·Massimiliano Sassi, Teva Vernoux
Jan 7, 2014·Frontiers in Plant Science·Efstathios RoumeliotisChristian W B Bachem

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Citations

Apr 16, 2019·FEBS Open Bio·Babak BehnamLuis Augusto Becerra Lopez-Lavalle

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Methods Mentioned

BETA
PCR

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