Robust transformation procedure for the production of transgenic farmer-preferred cassava landraces

<p>Abstract</p> <p>Recent progress in cassava transformation has allowed the robust production of transgenic cassava even under suboptimal plant tissue culture conditions. The transformation protocol has so far been used mostly for the cassava model cultivar 60444 because of its go...

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Main Authors: Zainuddin Ima M, Schlegel Kim, Gruissem Wilhelm, Vanderschuren Hervé
Format: Article
Language:English
Published: BMC 2012-07-01
Series:Plant Methods
Subjects:
Online Access:http://www.plantmethods.com/content/8/1/24
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author Zainuddin Ima M
Schlegel Kim
Gruissem Wilhelm
Vanderschuren Hervé
author_facet Zainuddin Ima M
Schlegel Kim
Gruissem Wilhelm
Vanderschuren Hervé
author_sort Zainuddin Ima M
collection DOAJ
description <p>Abstract</p> <p>Recent progress in cassava transformation has allowed the robust production of transgenic cassava even under suboptimal plant tissue culture conditions. The transformation protocol has so far been used mostly for the cassava model cultivar 60444 because of its good regeneration capacity of embryogenic tissues. However, for deployment and adoption of transgenic cassava in the field it is important to develop robust transformation methods for farmer- and industry-preferred landraces and cultivars. Because dynamics of multiplication and regeneration of embryogenic tissues differ between cassava genotypes, it was necessary to adapt the efficient cv. 60444 transformation protocol to genotypes that are more recalcitrant to transformation. Here we demonstrate that an improved cassava transformation protocol for cv. 60444 could be successfully modified for production of transgenic farmer-preferred cassava landraces. The modified transformation method reports on procedures for optimization and is likely transferable to other cassava genotypes reportedly recalcitrant to transformation provided production of high quality FEC. Because the three farmer-preferred cassava landraces selected in this study have been identified as resistant or tolerant to cassava mosaic disease (CMD), the adapted protocol will be essential to mobilize improved traits into cassava genotypes suitable for regions where CMD limits production.</p>
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spelling doaj.art-35be4859ff4c4872ac2b9c439bc8b1b02022-12-22T03:11:15ZengBMCPlant Methods1746-48112012-07-01812410.1186/1746-4811-8-24Robust transformation procedure for the production of transgenic farmer-preferred cassava landracesZainuddin Ima MSchlegel KimGruissem WilhelmVanderschuren Hervé<p>Abstract</p> <p>Recent progress in cassava transformation has allowed the robust production of transgenic cassava even under suboptimal plant tissue culture conditions. The transformation protocol has so far been used mostly for the cassava model cultivar 60444 because of its good regeneration capacity of embryogenic tissues. However, for deployment and adoption of transgenic cassava in the field it is important to develop robust transformation methods for farmer- and industry-preferred landraces and cultivars. Because dynamics of multiplication and regeneration of embryogenic tissues differ between cassava genotypes, it was necessary to adapt the efficient cv. 60444 transformation protocol to genotypes that are more recalcitrant to transformation. Here we demonstrate that an improved cassava transformation protocol for cv. 60444 could be successfully modified for production of transgenic farmer-preferred cassava landraces. The modified transformation method reports on procedures for optimization and is likely transferable to other cassava genotypes reportedly recalcitrant to transformation provided production of high quality FEC. Because the three farmer-preferred cassava landraces selected in this study have been identified as resistant or tolerant to cassava mosaic disease (CMD), the adapted protocol will be essential to mobilize improved traits into cassava genotypes suitable for regions where CMD limits production.</p>http://www.plantmethods.com/content/8/1/24CassavaTropical cropGenetic transformationSomatic embryogenesisAgrobacteriumFarmer-preferred landraces
spellingShingle Zainuddin Ima M
Schlegel Kim
Gruissem Wilhelm
Vanderschuren Hervé
Robust transformation procedure for the production of transgenic farmer-preferred cassava landraces
Plant Methods
Cassava
Tropical crop
Genetic transformation
Somatic embryogenesis
Agrobacterium
Farmer-preferred landraces
title Robust transformation procedure for the production of transgenic farmer-preferred cassava landraces
title_full Robust transformation procedure for the production of transgenic farmer-preferred cassava landraces
title_fullStr Robust transformation procedure for the production of transgenic farmer-preferred cassava landraces
title_full_unstemmed Robust transformation procedure for the production of transgenic farmer-preferred cassava landraces
title_short Robust transformation procedure for the production of transgenic farmer-preferred cassava landraces
title_sort robust transformation procedure for the production of transgenic farmer preferred cassava landraces
topic Cassava
Tropical crop
Genetic transformation
Somatic embryogenesis
Agrobacterium
Farmer-preferred landraces
url http://www.plantmethods.com/content/8/1/24
work_keys_str_mv AT zainuddinimam robusttransformationprocedurefortheproductionoftransgenicfarmerpreferredcassavalandraces
AT schlegelkim robusttransformationprocedurefortheproductionoftransgenicfarmerpreferredcassavalandraces
AT gruissemwilhelm robusttransformationprocedurefortheproductionoftransgenicfarmerpreferredcassavalandraces
AT vanderschurenherve robusttransformationprocedurefortheproductionoftransgenicfarmerpreferredcassavalandraces