Expression of VvmybA1 Gene and Anthocyanin Accumulation in Various Grape Organs
Expression of VvmybA1 Gene and Anthocyanin Accumulation in Various Grape Organs
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DOI：
10.5344/ajev.2006.57.4.507
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发表时间：
2006-12
影响因子：
1.9
通讯作者：
S. Jeong;N. Goto-Yamamoto;K. Hashizume;S. Kobayashi;M. Esaka
中科院分区：
文献类型：
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作者：
S. Jeong;N. Goto-Yamamoto;K. Hashizume;S. Kobayashi;M. Esaka
已知 VvmybA1 编码一种转录因子，可诱导葡萄皮中花青素的生物合成。然而，在赤霞珠、丹菲特或汉堡麝香的幼叶中，或者在百利麝香A的卷须或茎表皮中，没有检测到VvmybA1 mRNA，尽管这些器官积累了一些花青素。这些结果表明这些品种中的 VvmybA1 在浆果皮中特异性转录。 Bailey Alicant A（一种细长品种）的VvmybA1在所有积累花青素的器官中都被转录，这表明其表达的器官特异性可能降低。
VvmybA1 is known to encode a transcriptional factor that induces the anthocyanin biosynthesis in grape skins. However, no VvmybA1 mRNA was detected in the young leaves of Cabernet Sauvignon, Dornfelder, or Muscat Hamburg or in the tendrils or stem epidermis of Muscat Bailey A, although these organs accumulated some anthocyanin. These results indicate that VvmybA1 in these cultivars was transcribed specifically in the berry skin. VvmybA1 of Bailey Alicant A, a teinturier cultivar, was transcribed in all the organs that accumulate anthocyanin, which shows that the organ specificity of its expression was probably reduced.