Blar i forfatter "McGhie, Tony K."

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    • Flavonoid biosynthesis is differentially altered in detached and attached ripening bilberries in response to spectral light quality 

      Samkumar, Amos; Karppinen, Katja; McGhie, Tony K.; Espley, Richard V.; Martinussen, Inger; Jaakola, Laura (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-22)
      Light spectral quality is known to affect flavonoid biosynthesis during fruit ripening. However, the response of fruits to different light conditions, when ripening autonomously from the parent plant (detached), has been less explored. In this study, we analyzed the effect of light quality on detached and naturally ripening (attached) non-climacteric wild bilberry (Vaccinium myrtillus L.) fruits ...

    • MYBA and MYBPA transcription factors co-regulate anthocyanin biosynthesis in blue-coloured berries 

      Karppinen, Katja; Lafferty, Declan J.; Albert, Nick W.; Mikkola, Nelli; McGhie, Tony K.; Allan, Andrew C.; Afzal, Bilal M.; Häggman, Hely; Espley, Richard V.; Jaakola, Laura (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-05)
      <p>We used blue berries of bilberry (Vaccinium myrtillus) to comprehensively characterise flavonoid-regulating R2R3 MYBs, which revealed a new type of co-regulation in anthocyanin biosynthesis between members of MYBA-, MYBPA1- and MYBPA2-subgroups. <p>VmMYBA1, VmMYBPA1.1 and VmMYBPA2.2 expression was elevated at berry ripening and by abscisic acid treatment. Additionally, VmMYBA1 and VmMYBPA1.1 ...

    • Spatiotemporal modulation of flavonoid metabolism in blueberries 

      Günther, Catrin Sonja; Dare, Andrew P.; McGhie, Tony K.; Deng, Cecilia; Lafferty, Declan J.; Plunkett, Blue J.; Grierson, Ella R.P.; Turner, Janice L.; Jaakola, Laura; Albert, Nick W.; Espley, Richard V. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-13)
      Blueberries are distinguished by their purple-blue fruit color, which develops during ripening and is derived from a characteristic composition of flavonoid-derived anthocyanin pigments. The production of anthocyanins is confined to fruit skin, leaving the colorless fruit flesh devoid of these compounds. By linking accumulation patterns of phenolic metabolites with gene transcription in Northern ...