Production of transgenic rice with rice ragged stunt virus synthetic resistance genes

Upadhyaya, N. M., Li, Z., Ramm, K., Gaudron, J., Waterhouse, P. M., Wang, M. B., Kositratana, W., & Gong, Z. X. (1998) Production of transgenic rice with rice ragged stunt virus synthetic resistance genes. In International Symposium on Biotechnology of Tropical and Subtropical Species Part 2, pp. 393-400.

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Abstract

Rice ragged stunt virus (RRSV) is an important pathogen of rice affecting its cultivation in South and South East Asia. An approach based on pathogen derived resistance (PDR) was used to produce RRSV resistant rice cultivars. Sequences from the coding region of RRSV genome segments 7 and 10 (non-structural genes), and 5, 8 and 9 (structural genes) were placed in sense or antisense orientation behind the plant expression promoters CaMV35S, RolC, Ubil, Actl and RBTV. Rice cultivars Taipei 309 and Chinsurah Boro II were transformed by biolistic and/or Agrobacterium-mediated delivery of one or more of these PDR gene constructs. A large number of transgenic lines were produced from calli derived from mature or immature embryos, co-bombarded with the marker gene hph encoding hygromycin resistance and RRSV PDR genes or co-cultivated with strains having the binary vector containing these two genes. Both Mendelian and non-Mendelian segregations were observed in transgenic progeny, especially with transgenic lines produced by biolistics. Preliminary tests conducted in China on selected transgenic lines indicate that plants with RRSV segment 5 antisense PDR gene confer RRSV resistance.

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ID Code: 65849
Item Type: Conference Paper
Refereed: Yes
Keywords: Agrobacterium-mediated, Chinsurah boro II biolistics, Segregation, Taipei 309, Transformation, Transgenic
Subjects: Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > PLANT BIOLOGY (060700)
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 09 Jan 2014 07:46
Last Modified: 09 Jan 2014 07:46

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