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Fig. 13 | BMC Plant Biology

Fig. 13

From: Comparative transcriptome analysis reveals that chlorophyll metabolism contributes to leaf color changes in wucai (Brassica campestris L.) in response to cold

Fig. 13

A proposed working model. In the circadian pathway in the response to blue light, CRY promotes the transcription of downstream genes COP1 and SPA1 after perceiving the blue light signal, which leads to the ubiquitination-mediated degradation of downstream gene HY5. Meanwhile, the transcript level of HY5 is increased. Under low temperature condition, the expression of HY5 is downregulated in wucai. HY5 modulates the expression of two genes CHLH and PSY, which play a key role in the biosynthetic pathway of Chl and Car. The downregulation of CHLH and PSY leads to a reduced ratio of Chl/Car, which finally promotes leaf yellowing in wucai. The solid lines represent verified relationships, and the dashed lines indicate that the relationships need to be further investigated

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BMC Plant Biology

ISSN: 1471-2229

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