Poplar PdMYB is involved in the direct and indirect regulation of secondary wall biosynthesis during wood formation. This scenario is confirmed by the fact that MYB transcription factors are dominant factors in anthocyanin accumulation, possibly through the activation of bHLH. On the other hand, when VlMybA from grape Kobayashi et al. First, the formation of anthocyanins is genetically determined. A total of seven of the T 0 generation of transgenic tobacco plants that constitutively expressed MdMYBA under the control of the CaMV 35S promoter showed no significant differences in growth compared with the wild-type lines data not shown. Do not show this banner again.
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ProtoNet; Automatic hierarchical classification of proteins More Ensembl plant genome annotation project More However, the role of melatonin in nat Conspicuous levels of such coloration were also observed in the epidermis of the capsule Fig. Email alerts New issue alert. Indeed, previous observations indicated that MYB transcription factors functioned as an activator for bHLH transcription, therefore MYB efficiently formed a complex with bHLH and the resultant 21 could successively induce my biosynthesis Koes et al.
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Chromosome placement, phylogenetic, and motif structure analyses showed that these gene pairs resulted from multiple types of gene duplications and had five different gene fates. Poplar PdMYB is involved in the direct and indirect regulation of secondary wall biosynthesis during wood formation. When genomic DNA from the 14 apple cultivars was amplified by the MdMYBA marker, this marker could not discriminate the a 2 genotype because it had the same amplification pattern as A 1 Fig.
The linkage map position of MdMYBA calculated in our study further strengthens the importance in apple red coloration. Identification of co-dominant RAPD markers tightly linked to fruit 221 color in apple.
MYB family protein
A total of seven of the T 0 generation of transgenic tobacco plants that constitutively expressed MdMYBA under the control of the CaMV 35S promoter showed no significant differences in growth compared with the wild-type lines data not shown. Improvement of the quality characteristics of the flesh of the apple fruits, such as sugar and acid contents, fruit size and fruit flavor, is a major objective in apple breeding.
Therefore, the increase in anthocyanin concentrations induced by UV-B irradiation and low-temperature treatment ymb be attributed to the activation of MdMYBA.
Consequently, we proposed that the A 1a 1 and a 2 alleles developed by Cheng et al.
It is useful for tracking sequence updates. Conserved Domains Database More We also used tobacco as a model system for analysis of heterologous gene expression. These results indicate that the level of MdMYBA expression is positively correlated with the accumulation myn anthocyanins in apple skin after a certain age i.
They systemically analyzed the expression of miR The UV-B irradiation and low temperature both enhanced anthocyanin accumulation.
MYB – MYB family protein – Populus trichocarpa (Western balsam poplar) – MYB gene & protein
The reason for this change is unknown. This scenario is confirmed by the fact that MYB transcription factors are dominant factors in anthocyanin accumulation, possibly through the activation of bHLH.
Pfam protein domain database More Unreviewed – Annotation score: Thus, further investigation of the other promoters of anthocyanin biosynthetic genes and the inter-relationships among MdMYBA and other factors e.
The PCR was carried out as described above. These results indicated that modulation of MYB gene was enough to cause dramatic changes in anthocyanin accumulation; in other words, MYB transcription factors appear to be a dominant factor in anthocyanin accumulation. Recently, Walker et al. The BC genotype and skin color of the 14 apple cultivars are shown in the legend of Fig.
In fact, in all species analyzed to date, the common denominators in the regulation ymb anthocyanin biosynthetic genes are MYB transcription factors, basic helix—loop—helix bHLH transcription factors and a WD40 protein Stracke et al.
Uncharacterized protein Uncharacterized protein. Myb-related genes of the Kyoho grape Vitis labruscana regulate anthocyanin biosynthesis. Molecular evolution of the Myb family of transcription factors: Related articles in Web of Science Google Scholar.