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Dormancy and drought — One antisense to rule them all?

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NR 285 BIULETYN INSTYTUTU HODOWLI I AKLIMATYZACJI ROŚLIN 2019

39

RUSLAN YATUSEVICH SZYMON ŚWIEŻEWSKI

Instytut Biochemii i Biofizyki Polskiej Akademii Nauk Pawińskiego 5a, 02-106 Warszawa

e-mail: sswiez@ibb.waw.pl

Dormancy and drought — One antisense to rule

them all?

Antysensowna transkrypcja jako regulator spoczynku nasion i odporności na suszę

Plants have developed multiple strategies to sense the external environment and to adapt growth accordingly. Delay of germination 1 (DOG1) is a major quantitative trait locus (QTL) for seed dormancy strength in Arabidopsis thaliana. DOG1 is extensively regulated, with an antisense transcript (asDOG1) suppressing its expression in seeds and in mature plants. We showed that ABA elevates DOG1 suppression by suppressing asDOG1 in mature plants. This leads to the discovery of an unexpected role of DOG1 gene in drought resistance. In this talk we will describe our efforts to understand DOG1 antisense regulation by endogenous and exogenous signals.

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