Functional analysis of GbAGL1, a D-lineage gene from cotton (Gossypium barbadense)

Cotton fibres originate from the outer ovule integument and D-lineage genes are essential for ovule development and their roles can be described by the 'ABCDE' model of flower development. To investigate the role of D-lineage genes during ovule and fibre development, GbAGL1 (GenBank access...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 61(2010), 4 vom: 20. Feb., Seite 1193-203
1. Verfasser: Liu, Xiang (VerfasserIn)
Weitere Verfasser: Zuo, Kai-jing, Xu, Jie-ting, Li, Ying, Zhang, Fei, Yao, Hong-yan, Wang, Yue, Chen, Yu, Qiu, Cheng-xiang, Sun, Xiao-fen, Tang, Ke-xuan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Plant Proteins
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520 |a Cotton fibres originate from the outer ovule integument and D-lineage genes are essential for ovule development and their roles can be described by the 'ABCDE' model of flower development. To investigate the role of D-lineage genes during ovule and fibre development, GbAGL1 (GenBank accession number: FJ198049) was isolated from G. barbadense by using the SMART RACE strategy. Sequence and phylogenetic analyses revealed that GbAGL1 was a member of the D-lineage gene family. Southern blot analysis showed that GbAGL1 belonged to a low-copy gene family. Semi-quantitative RT-PCR and RNA in situ hybridization analyses revealed that the GbAGL1 gene in G. barbadense was highly expressed in whole floral bud primordia and the floral organs including ovules and fibres, but the signals were barely observed in vegetative tissues. GbAGL1 expression increased gradually with the ovule developmental stages. Over-expression of GbAGL1 in Arabidopsis caused obvious homeotic alternations in the floral organs, such as early flowering, and an extruded stigma, which were the typical phenotypes of the D-lineage gene family. In addition, a complementation test revealed that GbAGL1 could rescue the phenotypes of the stk mutant. Our study indicated that GbAGL1 was a D-lineage gene that was involved in ovule development and might play key roles in fibres development 
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700 1 |a Zuo, Kai-jing  |e verfasserin  |4 aut 
700 1 |a Xu, Jie-ting  |e verfasserin  |4 aut 
700 1 |a Li, Ying  |e verfasserin  |4 aut 
700 1 |a Zhang, Fei  |e verfasserin  |4 aut 
700 1 |a Yao, Hong-yan  |e verfasserin  |4 aut 
700 1 |a Wang, Yue  |e verfasserin  |4 aut 
700 1 |a Chen, Yu  |e verfasserin  |4 aut 
700 1 |a Qiu, Cheng-xiang  |e verfasserin  |4 aut 
700 1 |a Sun, Xiao-fen  |e verfasserin  |4 aut 
700 1 |a Tang, Ke-xuan  |e verfasserin  |4 aut 
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