Nadolska-Orczyk, Anna ; Zalewski, Wojciech ; Gasparis, Sebastian ; Orczyk, Wacław
Application of RNA interference for cereal crops biotechnology
Komitet Biotechnologii PAN ; Instytut Chemii Bioorganicznej PAN
RNAi technology is based on a natural process of RNA-directed gene regulation. The technique is widely used for gene functional analysis and to obtain plants with modified traits. The main advantage of this system, particularly when applied for polyploid species, is the possibility of simultaneous silencing of homologous, homoeologous or orthologous genes. The article discusses the results of relatively few papers where RNAi has been used for functional analysis of native genes of wheat and barley. The main part of the article presents the research on RNAi based gene silencing in cereals performed by our group. The experimental basis of our work was the elaboration of efficient Agrobacterium-hased transformation and plant regeneration systems of different cereal species (wheat, barley, triticale and oat). Currently, the method is applied for modification of two types of traits in wheat, triticale and barley. The first one is a technological trait related to cereal grain hardness. It is genetically controlled by Pina and Pinb genes. We obtained over a hundred transgenic lines with various degrees of Pina and Pinb silencing. Currently, the lines are being analyzed for the amount of PINA and PINB proteins, composition of storage proteins, and the grain texture. The second set of traits depends on CKX genes encoding cytokinin oxidase/dehydrogenase - the part of the system specifically governing the cytokinin level in different organs and developmental stages. We obtained over forty barley transgenic lines with silenced HvCKXl. This modification was found to be tightly correlated with enhanced plant productivity measured as the higher grain number and higher mass of a thousand kernels. The T1 and T2 transgenic seedlings developed bigger root system.
Biotechnologia, vol.90, 3 (2010)-.
oai:rcin.org.pl:71478 ; IChB B-85
Biblioteka Instytutu Chemii Bioorganicznej PAN
Licencja Creative Commons Uznanie autorstwa-Na tych samych warunkach 4.0
Instytut Chemii Bioorganiczneji Polskiej Akademii Nauk
Instytut Chemii Bioorganiczneji Polskiej Akademii Nauk
2 paź 2020
23 maj 2019
934
https://rcin.org.pl./publication/93511
Nazwa wydania | Data |
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Wykorzystanie interferencji RNA w biotechnologii zbóż | 2 paź 2020 |
Nadolska-Orczyk, Anna Przetakiewicz, Anna Orczyk, Wacław
Nadolska-Orczyk, Anna
Borkowska, Bożenna