Expression of a rice chitinase gene in transgenic banana (‘Gros Michel’, AAA genome group) confers resistance to black leaf streak disease

Kova´cs, Gabriella; Sa´gi, La´szlo´; Jacon, Ge´raldine; Arinaitwe, Geofrey; Busogoro, Jean-Pierre; Thiry, Els; Strosse, Hannelore; Swennen, Rony; Remy, Serge

Expression of a rice chitinase gene in transgenic banana (‘Gros Michel’, AAA genome group) confers resistance to black leaf streak disease

Files

Expression of a rice chitinase gene in transgenic banana.pdf (504.45 KB)

Date

2013

Authors

Kova´cs, Gabriella

Sa´gi, La´szlo´

Jacon, Ge´raldine

Arinaitwe, Geofrey

Busogoro, Jean-Pierre

Thiry, Els

Strosse, Hannelore

Swennen, Rony

Remy, Serge

Publisher

Transgenic research

Abstract

Transgenic banana (Musa acuminata ‘Gros Michel’) integrating either of two rice chitinase genes was generated and its resistance to Black Leaf Streak disease caused by the fungus Mycosphaerella fijiensis was tested using a leaf disk bioassay. PCR screening indicated the presence of the hpt selectable marker gene in more than 90 % of the lines tested, whereas more than three quarters of the lines contained the linked rice chitinase gene resulting in a co-transformation frequency of at least 71.4 %. Further, a unique stable integration of the transgenes in each line revealed some false negative PCR results and the expected co-transformation frequency of 100 %. Gabriella Kova´cs, La´szlo´ Sa´gi contributed equally to this work.

Keywords

Black leaf streak disease Leaf disk assay Musa spp. Mycosphaerella fijiensis Transgenic banana

Citation

Kovács, G., Sági, L., Jacon, G., Arinaitwe, G., Busogoro, J. P., Thiry, E., ... & Remy, S. (2013). Expression of a rice chitinase gene in transgenic banana (‘Gros Michel’, AAA genome group) confers resistance to black leaf streak disease. Transgenic research, 22(1), 117-130.(doi:10.1007/s11248-012-9631-1)