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Regeneration of transgenic vegetable brassicas ( Brassica oleracea and B. campestris ) via Ri-mediated transformation

Regeneration of transgenic vegetable brassicas ( Brassica oleracea and B. campestris ) via... A procedure for the production of fertile transgenic brassicas via Ri-mediated transformation is reported in this paper. Transgenic hairy root lines were selected for 12 vegetable brassica cultivars and lines representing six varieties: broccoli, Brussels sprouts, cabbage, cauliflower, rapid-cycling (all Brassica oleracea ) and Chinese cabbage ( B. campestris ). Leaf explants or petioles of intact cotyledons were co-cultivated with Agrobacterium strain A4T harbouring various binary vectors. The T-DNA region of all binary vectors contained a neomycin phosphotransferase II gene for kanamycin resistance, in addition to other genes. Hairy root lines grew prolifically on hormone-free medium containing kanamycin. Transgenic shoots were regenerated from all cultivars either spontaneously or after transfer of hairy roots to a hormone-containing medium. Southern analysis confirmed that the plants were transgenic. Plants from all brassica types were successfully transferred to greenhouse conditions. Plants were fertile and segregation analysis confirmed transmission of traits to progeny. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Cell Reports Springer Journals

Regeneration of transgenic vegetable brassicas ( Brassica oleracea and B. campestris ) via Ri-mediated transformation

Plant Cell Reports , Volume 16 (9) – Jun 1, 1997

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References (22)

Publisher
Springer Journals
Copyright
Copyright © 1997 by Springer-Verlag
Subject
Life Sciences; Biotechnology; Cell Biology
ISSN
0721-7714
eISSN
1432-203X
DOI
10.1007/BF01275497
Publisher site
See Article on Publisher Site

Abstract

A procedure for the production of fertile transgenic brassicas via Ri-mediated transformation is reported in this paper. Transgenic hairy root lines were selected for 12 vegetable brassica cultivars and lines representing six varieties: broccoli, Brussels sprouts, cabbage, cauliflower, rapid-cycling (all Brassica oleracea ) and Chinese cabbage ( B. campestris ). Leaf explants or petioles of intact cotyledons were co-cultivated with Agrobacterium strain A4T harbouring various binary vectors. The T-DNA region of all binary vectors contained a neomycin phosphotransferase II gene for kanamycin resistance, in addition to other genes. Hairy root lines grew prolifically on hormone-free medium containing kanamycin. Transgenic shoots were regenerated from all cultivars either spontaneously or after transfer of hairy roots to a hormone-containing medium. Southern analysis confirmed that the plants were transgenic. Plants from all brassica types were successfully transferred to greenhouse conditions. Plants were fertile and segregation analysis confirmed transmission of traits to progeny.

Journal

Plant Cell ReportsSpringer Journals

Published: Jun 1, 1997

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