Chapter title |
Adapting the Lateral Root-Inducible System to Medicago truncatula
|
---|---|
Chapter number | 5 |
Book title |
Root Development
|
Published in |
Methods in molecular biology, March 2018
|
DOI | 10.1007/978-1-4939-7747-5_5 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7746-8, 978-1-4939-7747-5
|
Authors |
Violaine Herrbach, Fabienne Maillet, Sandra Bensmihen |
Abstract |
Almost all legume plants have the capacity to form two types of root organs: lateral roots and nodules (that will host rhizobia that fix nitrogen). Transcriptomic analyses are useful to understand both the similarities and differences between nodule and LR formation and to compare the LR developmental programs used by Arabidopsis and model legumes such as Medicago truncatula. However, in M. truncatula as in Arabidopsis, root cells "committed" to LR formation programs are scattered along the primary root and localized in the inner most layers of the root. To gain access to these cells, a lateral root-inducible system (LRIS) was first developed in Arabidopsis. This LRIS was recently shown to be effective in maize as well. Here we present a LRIS protocol adapted to the model legume Medicago truncatula. Using the same auxin transporter inhibitor and permeant auxin molecules used for Arabidopsis and maize but with slight modifications in their concentrations, we obtained very efficient enrichment and synchronization in LR development stages in M. truncatula. |
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