Snapdragon(Antirrhinum majus)is one of the most widely cultivated grass flowers in the world.WRKY transcription factors,VQ proteins and their interactions play crucial roles in plant response to abiotic stresses.Howev...Snapdragon(Antirrhinum majus)is one of the most widely cultivated grass flowers in the world.WRKY transcription factors,VQ proteins and their interactions play crucial roles in plant response to abiotic stresses.However,little is known about WRKY and VQ gene families in snapdragon.In the present study,WRKY and VQ genes and their interactions were comprehensively analyzed in snapdragon using bioinformatics approaches,and their expression in response to drought and cold stresses was examined using real-time PCR.A total of 67 AmWRKY genes were identified in snapdragon,which were classified into different groups or subgroups based on phylogenetic analysis.Members in the same group or sub-groups exhibited similar exon-intron structure and conserved motifs distribution.Among these WRKY genes,16 and 22 genes were found to differentially express under drought and cold stresses,respectively.A total of 32 AmVQ genes were identified,of which 10 and 18 were found to differentially express under drought and cold stresses,respectively.The WRKY-VQ or WRKY-WRKY interaction relationships were predicted for 11 cold-responsive genes,suggesting that they might exist in the same response pathway to cold stress.These results lay a foundation for further studies on roles of WRKY and VQ genes and their interactions in regulating abiotic responses in snapdragon.展开更多
Shades of different light intensities (29%, 43%, 54%,60% or 68%) along with control (no shade) were studied to observe their effects on the flowering time and plant quality. A hyperbolic relationship was observed betw...Shades of different light intensities (29%, 43%, 54%,60% or 68%) along with control (no shade) were studied to observe their effects on the flowering time and plant quality. A hyperbolic relationship was observed between different light intensities under shade,and time to flowering.The total number of flower buds showed a curvilinear relationship with light intensities. Growth parameters related to the plant characteristics such as plant height,leaf area and plant fresh weight were improved under shading treatments at the expense of flowering time and number of flower buds.However,both linear and polynomial models applied assumed that cultivar Chimes White was equally sensitive to light intensity throughout development.展开更多
基金This research was funded by the Key Research and Development Plan of Zhejiang Province(2019C02025)the Youth Talent Program of Zhejiang Academy of Agricultural Sciences(2020R25R08E02).
文摘Snapdragon(Antirrhinum majus)is one of the most widely cultivated grass flowers in the world.WRKY transcription factors,VQ proteins and their interactions play crucial roles in plant response to abiotic stresses.However,little is known about WRKY and VQ gene families in snapdragon.In the present study,WRKY and VQ genes and their interactions were comprehensively analyzed in snapdragon using bioinformatics approaches,and their expression in response to drought and cold stresses was examined using real-time PCR.A total of 67 AmWRKY genes were identified in snapdragon,which were classified into different groups or subgroups based on phylogenetic analysis.Members in the same group or sub-groups exhibited similar exon-intron structure and conserved motifs distribution.Among these WRKY genes,16 and 22 genes were found to differentially express under drought and cold stresses,respectively.A total of 32 AmVQ genes were identified,of which 10 and 18 were found to differentially express under drought and cold stresses,respectively.The WRKY-VQ or WRKY-WRKY interaction relationships were predicted for 11 cold-responsive genes,suggesting that they might exist in the same response pathway to cold stress.These results lay a foundation for further studies on roles of WRKY and VQ genes and their interactions in regulating abiotic responses in snapdragon.
文摘Shades of different light intensities (29%, 43%, 54%,60% or 68%) along with control (no shade) were studied to observe their effects on the flowering time and plant quality. A hyperbolic relationship was observed between different light intensities under shade,and time to flowering.The total number of flower buds showed a curvilinear relationship with light intensities. Growth parameters related to the plant characteristics such as plant height,leaf area and plant fresh weight were improved under shading treatments at the expense of flowering time and number of flower buds.However,both linear and polynomial models applied assumed that cultivar Chimes White was equally sensitive to light intensity throughout development.
