In an attempt to elucidate the biological effects and underlying mutations involving flower color in ornamental plants following carbon ion beam radiation,shoots of geranium were exposed at dosages of 0,10,15,30,and40...In an attempt to elucidate the biological effects and underlying mutations involving flower color in ornamental plants following carbon ion beam radiation,shoots of geranium were exposed at dosages of 0,10,15,30,and40 Gy,and one flower color mutant was obtained.The morphological characteristics,physiological aspects,and DNA polymorphisms between wild-type and flower color mutants were analyzed.The colors of petal,peduncle,pistil,and stamen of the mutant displayed significant differences compared to those of the wild-type.Compared to the original plants,the total anthocyanin content in the petals of the mutant significantly decreased,resulting in a light pink petal phenotype.DNA polymorphisms detected by random amplified polymorphic DNA analysis showed that the ratio of different bands between the wild-type and mutant reached up to 13.2%.The present study demonstrates that carbon ion beam irradiation is effective in inducing genomic variations,resulting in flower color geranium mutants within a relatively short period of time.Meanwhile,the developed flower-color mutants may be potentially used in future mutational research studies involving ornamental plants.展开更多
[Objectives] This study was conducted to explore the color variation mechanism of Anthurium andraeanum spathe at the protein level. [Methods]The differential proteins of wild type and its white mutant were separated a...[Objectives] This study was conducted to explore the color variation mechanism of Anthurium andraeanum spathe at the protein level. [Methods]The differential proteins of wild type and its white mutant were separated and identified by using one-dimensional gel electrophoresis and mass spectrometry( 1-DE/MS). [Results] Compared with leaves and spadices,the 1-DE patterns of two kinds of spathe proteins were significantly different,and two different bands were detected in wild type spathes and mutant spathes respectively. The four significantly differential bands were selected and analyzed by mass spectrometry,and 138,111,70 and 427 proteins were identified respectively. The results of GO functional annotation analysis showed that the molecular functions of the proteins were mainly catalytic activity and binding,and the main biological processes involved were cellular process and metabolic process. Many proteins involved in the synthesis of anthocyanins and flavonoids,sugar metabolism and some resistance proteins were screened,indicating that the spathe color difference of A. andraeanum‘Pink champion'is not only related to anthocyanin anabolism,but also regulated by various metabolic pathways. [Conclusions]The study provides a new experimental basis for elucidating the molecular mechanism of the regulation of A. andraeanum flower color.展开更多
In order to understand the mechanism of spathe color variation in Anthurium andraeanum at the protein level, the leaves, inflorescences and spathes of the wild type and two mutants of A. andraeanum 'Madural' w...In order to understand the mechanism of spathe color variation in Anthurium andraeanum at the protein level, the leaves, inflorescences and spathes of the wild type and two mutants of A. andraeanum 'Madural' were used as research objects in which the differential expression of proteins related to flower color mutants was analyzed by one-dimensional electrophoresis and mass spectrometry(1-DE/MS). The 1-DE patterns showed that the protein components expressed highly in spathes were mainly concentrated in the molecular weight range of 20-42 kD, and differential bands were detected between the wild type and the mutant, while no significant differences were detected in the leaf and inflorescence proteins. According to the results of mass spectrometry analysis of the differential bands, 21 known functional proteins involved in life processes such as glucose metabolism, resistance, cytoskeleton, gene regulation and signal transduction were identified. It showed that in addition to the influences from anthocyanidins, the spathe color variation of A. andraeanum 'Madural' is also regulated by a variety of metabolic pathway-related proteins.展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.11205218,11275171,and 11405234)the Knowledge Innovation Project of the Chinese Academy of Sciences(CAS)(No.KJCX2-EW-N05)+1 种基金CAS‘‘Light of West China’’Program(No.29Y506020)the Youth Innovation Promotion Association of CAS(No.29Y506030)supported this study
文摘In an attempt to elucidate the biological effects and underlying mutations involving flower color in ornamental plants following carbon ion beam radiation,shoots of geranium were exposed at dosages of 0,10,15,30,and40 Gy,and one flower color mutant was obtained.The morphological characteristics,physiological aspects,and DNA polymorphisms between wild-type and flower color mutants were analyzed.The colors of petal,peduncle,pistil,and stamen of the mutant displayed significant differences compared to those of the wild-type.Compared to the original plants,the total anthocyanin content in the petals of the mutant significantly decreased,resulting in a light pink petal phenotype.DNA polymorphisms detected by random amplified polymorphic DNA analysis showed that the ratio of different bands between the wild-type and mutant reached up to 13.2%.The present study demonstrates that carbon ion beam irradiation is effective in inducing genomic variations,resulting in flower color geranium mutants within a relatively short period of time.Meanwhile,the developed flower-color mutants may be potentially used in future mutational research studies involving ornamental plants.
基金Supported by Suzhou Agricultural Applied Basic Research Program(SNG201605)。
文摘[Objectives] This study was conducted to explore the color variation mechanism of Anthurium andraeanum spathe at the protein level. [Methods]The differential proteins of wild type and its white mutant were separated and identified by using one-dimensional gel electrophoresis and mass spectrometry( 1-DE/MS). [Results] Compared with leaves and spadices,the 1-DE patterns of two kinds of spathe proteins were significantly different,and two different bands were detected in wild type spathes and mutant spathes respectively. The four significantly differential bands were selected and analyzed by mass spectrometry,and 138,111,70 and 427 proteins were identified respectively. The results of GO functional annotation analysis showed that the molecular functions of the proteins were mainly catalytic activity and binding,and the main biological processes involved were cellular process and metabolic process. Many proteins involved in the synthesis of anthocyanins and flavonoids,sugar metabolism and some resistance proteins were screened,indicating that the spathe color difference of A. andraeanum‘Pink champion'is not only related to anthocyanin anabolism,but also regulated by various metabolic pathways. [Conclusions]The study provides a new experimental basis for elucidating the molecular mechanism of the regulation of A. andraeanum flower color.
基金Supported by the Applied Basic Research Program of Suzhou(SNG201605)Kunshan Ecological Agricultural Science and Technology Project(KN1614)
文摘In order to understand the mechanism of spathe color variation in Anthurium andraeanum at the protein level, the leaves, inflorescences and spathes of the wild type and two mutants of A. andraeanum 'Madural' were used as research objects in which the differential expression of proteins related to flower color mutants was analyzed by one-dimensional electrophoresis and mass spectrometry(1-DE/MS). The 1-DE patterns showed that the protein components expressed highly in spathes were mainly concentrated in the molecular weight range of 20-42 kD, and differential bands were detected between the wild type and the mutant, while no significant differences were detected in the leaf and inflorescence proteins. According to the results of mass spectrometry analysis of the differential bands, 21 known functional proteins involved in life processes such as glucose metabolism, resistance, cytoskeleton, gene regulation and signal transduction were identified. It showed that in addition to the influences from anthocyanidins, the spathe color variation of A. andraeanum 'Madural' is also regulated by a variety of metabolic pathway-related proteins.
