文献类型：期刊文献

英文题名：The potential role of B-function gene involved in floral development for double flowers formation in Camellia changii Ye

作者：Zhu, Gaopu[1,2] Li, Jiyuan[1] Ni, Sui[1,3] Fan, Zhengqi[1] Yin, Hengfu[1] Li, Xinlei[1] Zhou, Xingwen[1]

通信作者：Li, JY[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Peoples R China;[2]Chinese Acad Forestry, Nontimber Forestry Res & Dev Ctr, Zhengzhou 45003, Peoples R China;[3]Ningbo Univ, Fac Life Sci & Biotechnol, Ningbo 315211, Peoples R China

年份：2011

卷号：10

期号：74

起止页码：16757-16762

外文期刊名：AFRICAN JOURNAL OF BIOTECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000298560300007)】；

基金：We thank our laboratory colleagues for discussions and constructive criticism. This work was supported by the Scientific Research Fund for Forestry Public-interest Vocation (No. 200704028) and Forestry "948" Projects of China (No. 2007-4-04) and Zhejiang Provincial International cooperation Major Program (No. 2008C14065) and Zhejiang Province and Academy cooperation Forestry Science and Technology Program (No. 2008SY08) and Central Public-interest Scientific Institution Basal Research Fund of China (No. CAFYBB2007020).

语种：英文

外文关键词：Petaloid phenotype; double flowers; B-function gene; Camellia changii Ye; real-time polymerase chain reaction (PCR)

摘要：Camellia changii Ye, a rare and endangered species, has a phenotype that sepals frequently transform into petals. We assumed that this change would cause single C. changii Ye turned double flowers and this was confirmed by the double flowers we found in grafted C. changii Ye. The microstructure of floral organs showed that: in perfect petals, the anthocyanin is distributed in the upper and lower epidermis; in petaloid sepals, anthocyaninin had both sepal and petal identities and sepals gradually transformed into petals; in spot-petaloid sepals, anthocyaninin is only distributed in upper epidermis. B-function gene GLOBOSA1 (GLO1) and GLOBOSA2 (GLO2) had high expression at the part with petal identity and had low or no expression at or near the part with sepal identity and these kinds of expression showed that gene played an important role in determining petal identity. B-function gene DEFICIENS (DEF) and TOMATO MADS BOX GENE6 (TM6) had high expression at the fused part of the stamens and this implied the importance of gene when stamen is transformed into petal. Thus, B-function gene is very important when C. changii Ye evolved into double flowers.