The Experts below are selected from a list of 315 Experts worldwide ranked by ideXlab platform
Zhongshan Gao - One of the best experts on this subject based on the ideXlab platform.
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development of simple sequence repeat ssr markers from a genome survey of chinese bayberry Myrica rubra
BMC Genomics, 2012Co-Authors: Yun Jiao, Huimin Jia, Mingliang Chai, Huijuan Jia, Zhe Chen, Guoyun Wang, Chunyan Chai, Eric Van De Weg, Zhongshan GaoAbstract:Background: Chinese bayberry (Myrica rubra Sieb. and Zucc.) is a subtropical evergreen tree originating in China. It has been cultivated in southern China for several thousand years, and annual production has reached 1.1 million tons. The taste and high level of health promoting characters identified in the fruit in recent years has stimulated its extension in China and introduction to Australia. A limited number of co-dominant markers have been developed and applied in genetic diversity and identity studies. Here we report, for the first time, a survey of whole genome shotgun data to develop a large number of simple sequence repeat (SSR) markers to analyse the genetic diversity of the common cultivated Chinese bayberry and the relationship with three other Myrica species. Results: The whole genome shotgun survey of Chinese bayberry produced 9.01Gb of sequence data, about 26x coverage of the estimated genome size of 323 Mb. The genome sequences were highly heterozygous, but with little duplication. From the initial assembled scaffold covering 255 Mb sequence data, 28,602 SSRs (≥5 repeats) were identified. Dinucleotide was the most common repeat motif with a frequency of 84.73%, followed by 13.78% trinucleotide, 1.34% tetranucleotide, 0.12% pentanucleotide and 0.04% hexanucleotide. From 600 primer pairs, 186 polymorphic SSRs were developed. Of these, 158 were used to screen 29 Chinese bayberry accessions and three other Myrica species: 91.14%, 89.87% and 46.84% SSRs could be used in Myrica adenophora, Myrica nana and Myrica cerifera, respectively. The UPGMA dendrogram tree showed that cultivated Myrica rubra is closely related to Myrica adenophora and Myrica nana, originating in southwest China, and very distantly related to Myrica cerifera, originating in America. These markers can be used in the construction of a linkage map and for genetic diversity studies in Myrica species. Conclusion: Myrica rubra has a small genome of about 323 Mb with a high level of heterozygosity. A large number of SSRs were identified, and 158 polymorphic SSR markers developed, 91% of which can be transferred to other Myrica species.
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Development of simple sequence repeat (SSR) markers from a genome survey of Chinese bayberry (Myrica rubra)
BMC genomics, 2012Co-Authors: Yun Jiao, Huimin Jia, Mingliang Chai, Huijuan Jia, Zhe Chen, Guoyun Wang, Chunyan Chai, Eric Van De Weg, Zhongshan GaoAbstract:Chinese bayberry (Myrica rubra Sieb. and Zucc.) is a subtropical evergreen tree originating in China. It has been cultivated in southern China for several thousand years, and annual production has reached 1.1 million tons. The taste and high level of health promoting characters identified in the fruit in recent years has stimulated its extension in China and introduction to Australia. A limited number of co-dominant markers have been developed and applied in genetic diversity and identity studies. Here we report, for the first time, a survey of whole genome shotgun data to develop a large number of simple sequence repeat (SSR) markers to analyse the genetic diversity of the common cultivated Chinese bayberry and the relationship with three other Myrica species. The whole genome shotgun survey of Chinese bayberry produced 9.01Gb of sequence data, about 26x coverage of the estimated genome size of 323 Mb. The genome sequences were highly heterozygous, but with little duplication. From the initial assembled scaffold covering 255 Mb sequence data, 28,602 SSRs (≥5 repeats) were identified. Dinucleotide was the most common repeat motif with a frequency of 84.73%, followed by 13.78% trinucleotide, 1.34% tetranucleotide, 0.12% pentanucleotide and 0.04% hexanucleotide. From 600 primer pairs, 186 polymorphic SSRs were developed. Of these, 158 were used to screen 29 Chinese bayberry accessions and three other Myrica species: 91.14%, 89.87% and 46.84% SSRs could be used in Myrica adenophora, Myrica nana and Myrica cerifera, respectively. The UPGMA dendrogram tree showed that cultivated Myrica rubra is closely related to Myrica adenophora and Myrica nana, originating in southwest China, and very distantly related to Myrica cerifera, originating in America. These markers can be used in the construction of a linkage map and for genetic diversity studies in Myrica species. Myrica rubra has a small genome of about 323 Mb with a high level of heterozygosity. A large number of SSRs were identified, and 158 polymorphic SSR markers developed, 91% of which can be transferred to other Myrica species.
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development and characterization of microsatellite markers for chinese bayberry Myrica rubra sieb zucc
Conservation Genetics, 2009Co-Authors: Shui Ming Zhang, Zhongshan Gao, Kunsong Chen, Guoyun WangAbstract:Chinese bayberry (Myrica rubra Sieb. & Zucc.) is one of the most important fruit tree crops in southern China. This paper reports the development of microsatellite primers for Chinese bayberry. By screening the expressed sequence tag database and other sources, 11 polymorphic loci were generated and primers were designed. Polymorphism of these 11 loci was assessed in 32 cultivars. All the 11 loci are polymorphic and the number of alleles (A) ranged from 3 to 12, observed heterozygosity (HO) and expected heterozygosity (HE) ranged from 0.1250 to 0.9667 and 0.2359 to 0.8790, respectively, polymorphism information content ranged from 0.2285 to 0.8516. These microsatellite loci should be useful in the studies of genetic diversity of Myrica rubra and will provide useful implications for resource conservation.
Guoyun Wang - One of the best experts on this subject based on the ideXlab platform.
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development of simple sequence repeat ssr markers from a genome survey of chinese bayberry Myrica rubra
BMC Genomics, 2012Co-Authors: Yun Jiao, Huimin Jia, Mingliang Chai, Huijuan Jia, Zhe Chen, Guoyun Wang, Chunyan Chai, Eric Van De Weg, Zhongshan GaoAbstract:Background: Chinese bayberry (Myrica rubra Sieb. and Zucc.) is a subtropical evergreen tree originating in China. It has been cultivated in southern China for several thousand years, and annual production has reached 1.1 million tons. The taste and high level of health promoting characters identified in the fruit in recent years has stimulated its extension in China and introduction to Australia. A limited number of co-dominant markers have been developed and applied in genetic diversity and identity studies. Here we report, for the first time, a survey of whole genome shotgun data to develop a large number of simple sequence repeat (SSR) markers to analyse the genetic diversity of the common cultivated Chinese bayberry and the relationship with three other Myrica species. Results: The whole genome shotgun survey of Chinese bayberry produced 9.01Gb of sequence data, about 26x coverage of the estimated genome size of 323 Mb. The genome sequences were highly heterozygous, but with little duplication. From the initial assembled scaffold covering 255 Mb sequence data, 28,602 SSRs (≥5 repeats) were identified. Dinucleotide was the most common repeat motif with a frequency of 84.73%, followed by 13.78% trinucleotide, 1.34% tetranucleotide, 0.12% pentanucleotide and 0.04% hexanucleotide. From 600 primer pairs, 186 polymorphic SSRs were developed. Of these, 158 were used to screen 29 Chinese bayberry accessions and three other Myrica species: 91.14%, 89.87% and 46.84% SSRs could be used in Myrica adenophora, Myrica nana and Myrica cerifera, respectively. The UPGMA dendrogram tree showed that cultivated Myrica rubra is closely related to Myrica adenophora and Myrica nana, originating in southwest China, and very distantly related to Myrica cerifera, originating in America. These markers can be used in the construction of a linkage map and for genetic diversity studies in Myrica species. Conclusion: Myrica rubra has a small genome of about 323 Mb with a high level of heterozygosity. A large number of SSRs were identified, and 158 polymorphic SSR markers developed, 91% of which can be transferred to other Myrica species.
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Development of simple sequence repeat (SSR) markers from a genome survey of Chinese bayberry (Myrica rubra)
BMC genomics, 2012Co-Authors: Yun Jiao, Huimin Jia, Mingliang Chai, Huijuan Jia, Zhe Chen, Guoyun Wang, Chunyan Chai, Eric Van De Weg, Zhongshan GaoAbstract:Chinese bayberry (Myrica rubra Sieb. and Zucc.) is a subtropical evergreen tree originating in China. It has been cultivated in southern China for several thousand years, and annual production has reached 1.1 million tons. The taste and high level of health promoting characters identified in the fruit in recent years has stimulated its extension in China and introduction to Australia. A limited number of co-dominant markers have been developed and applied in genetic diversity and identity studies. Here we report, for the first time, a survey of whole genome shotgun data to develop a large number of simple sequence repeat (SSR) markers to analyse the genetic diversity of the common cultivated Chinese bayberry and the relationship with three other Myrica species. The whole genome shotgun survey of Chinese bayberry produced 9.01Gb of sequence data, about 26x coverage of the estimated genome size of 323 Mb. The genome sequences were highly heterozygous, but with little duplication. From the initial assembled scaffold covering 255 Mb sequence data, 28,602 SSRs (≥5 repeats) were identified. Dinucleotide was the most common repeat motif with a frequency of 84.73%, followed by 13.78% trinucleotide, 1.34% tetranucleotide, 0.12% pentanucleotide and 0.04% hexanucleotide. From 600 primer pairs, 186 polymorphic SSRs were developed. Of these, 158 were used to screen 29 Chinese bayberry accessions and three other Myrica species: 91.14%, 89.87% and 46.84% SSRs could be used in Myrica adenophora, Myrica nana and Myrica cerifera, respectively. The UPGMA dendrogram tree showed that cultivated Myrica rubra is closely related to Myrica adenophora and Myrica nana, originating in southwest China, and very distantly related to Myrica cerifera, originating in America. These markers can be used in the construction of a linkage map and for genetic diversity studies in Myrica species. Myrica rubra has a small genome of about 323 Mb with a high level of heterozygosity. A large number of SSRs were identified, and 158 polymorphic SSR markers developed, 91% of which can be transferred to other Myrica species.
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development and characterization of microsatellite markers for chinese bayberry Myrica rubra sieb zucc
Conservation Genetics, 2009Co-Authors: Shui Ming Zhang, Zhongshan Gao, Kunsong Chen, Guoyun WangAbstract:Chinese bayberry (Myrica rubra Sieb. & Zucc.) is one of the most important fruit tree crops in southern China. This paper reports the development of microsatellite primers for Chinese bayberry. By screening the expressed sequence tag database and other sources, 11 polymorphic loci were generated and primers were designed. Polymorphism of these 11 loci was assessed in 32 cultivars. All the 11 loci are polymorphic and the number of alleles (A) ranged from 3 to 12, observed heterozygosity (HO) and expected heterozygosity (HE) ranged from 0.1250 to 0.9667 and 0.2359 to 0.8790, respectively, polymorphism information content ranged from 0.2285 to 0.8516. These microsatellite loci should be useful in the studies of genetic diversity of Myrica rubra and will provide useful implications for resource conservation.
Paula C. Castilho - One of the best experts on this subject based on the ideXlab platform.
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Myrica faya : A New Source of Antioxidant Phytochemicals
Journal of agricultural and food chemistry, 2014Co-Authors: Vítor Spínola, Eulogio J. Llorent-martínez, Sandra Gouveia, Paula C. CastilhoAbstract:Myrica faya is a fruit tree endemic of the Macaronesia (Azores, Madeira, and Canary Island), and its edible fruits are known as "amorinhos" (little loves), bright red to purple berries, used fresh and in jams and liquors. The phenolic composition and antioxidant capacity of leaves and berries from M. faya are presented here for the first time. The screening of phytochemical compounds was carried out using high-performance liquid chromatography with online UV and electrospray ionization mass spectrometric detection (HPLC-DAD-ESI-MS(n)). There were 55 compounds characterized, mostly galloyl esters of flavonoids and phenolic acids; 26 of the identified compounds (anthocyanins, isoflavonoids, lignans, terpenes, fatty acids, and phenylethanoids) have not been reported in Myrica genus so far. From the data presented here, it can be concluded that faya berries represent a rich source of cyanidin-3-glucoside, flavonoids, and vitamin C. In fact, higher antioxidant activity than that of the well-known Myrica rubra berries (Chinese bayberry) has been observed.
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Myrica faya a new source of antioxidant phytochemicals
Journal of Agricultural and Food Chemistry, 2014Co-Authors: Vítor Spínola, Sandra Gouveia, E J Llorentmartinez, Paula C. CastilhoAbstract:Myrica faya is a fruit tree endemic of the Macaronesia (Azores, Madeira, and Canary Island), and its edible fruits are known as "amorinhos" (little loves), bright red to purple berries , used fresh ...
Yun Jiao - One of the best experts on this subject based on the ideXlab platform.
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development of simple sequence repeat ssr markers from a genome survey of chinese bayberry Myrica rubra
BMC Genomics, 2012Co-Authors: Yun Jiao, Huimin Jia, Mingliang Chai, Huijuan Jia, Zhe Chen, Guoyun Wang, Chunyan Chai, Eric Van De Weg, Zhongshan GaoAbstract:Background: Chinese bayberry (Myrica rubra Sieb. and Zucc.) is a subtropical evergreen tree originating in China. It has been cultivated in southern China for several thousand years, and annual production has reached 1.1 million tons. The taste and high level of health promoting characters identified in the fruit in recent years has stimulated its extension in China and introduction to Australia. A limited number of co-dominant markers have been developed and applied in genetic diversity and identity studies. Here we report, for the first time, a survey of whole genome shotgun data to develop a large number of simple sequence repeat (SSR) markers to analyse the genetic diversity of the common cultivated Chinese bayberry and the relationship with three other Myrica species. Results: The whole genome shotgun survey of Chinese bayberry produced 9.01Gb of sequence data, about 26x coverage of the estimated genome size of 323 Mb. The genome sequences were highly heterozygous, but with little duplication. From the initial assembled scaffold covering 255 Mb sequence data, 28,602 SSRs (≥5 repeats) were identified. Dinucleotide was the most common repeat motif with a frequency of 84.73%, followed by 13.78% trinucleotide, 1.34% tetranucleotide, 0.12% pentanucleotide and 0.04% hexanucleotide. From 600 primer pairs, 186 polymorphic SSRs were developed. Of these, 158 were used to screen 29 Chinese bayberry accessions and three other Myrica species: 91.14%, 89.87% and 46.84% SSRs could be used in Myrica adenophora, Myrica nana and Myrica cerifera, respectively. The UPGMA dendrogram tree showed that cultivated Myrica rubra is closely related to Myrica adenophora and Myrica nana, originating in southwest China, and very distantly related to Myrica cerifera, originating in America. These markers can be used in the construction of a linkage map and for genetic diversity studies in Myrica species. Conclusion: Myrica rubra has a small genome of about 323 Mb with a high level of heterozygosity. A large number of SSRs were identified, and 158 polymorphic SSR markers developed, 91% of which can be transferred to other Myrica species.
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Development of simple sequence repeat (SSR) markers from a genome survey of Chinese bayberry (Myrica rubra)
BMC genomics, 2012Co-Authors: Yun Jiao, Huimin Jia, Mingliang Chai, Huijuan Jia, Zhe Chen, Guoyun Wang, Chunyan Chai, Eric Van De Weg, Zhongshan GaoAbstract:Chinese bayberry (Myrica rubra Sieb. and Zucc.) is a subtropical evergreen tree originating in China. It has been cultivated in southern China for several thousand years, and annual production has reached 1.1 million tons. The taste and high level of health promoting characters identified in the fruit in recent years has stimulated its extension in China and introduction to Australia. A limited number of co-dominant markers have been developed and applied in genetic diversity and identity studies. Here we report, for the first time, a survey of whole genome shotgun data to develop a large number of simple sequence repeat (SSR) markers to analyse the genetic diversity of the common cultivated Chinese bayberry and the relationship with three other Myrica species. The whole genome shotgun survey of Chinese bayberry produced 9.01Gb of sequence data, about 26x coverage of the estimated genome size of 323 Mb. The genome sequences were highly heterozygous, but with little duplication. From the initial assembled scaffold covering 255 Mb sequence data, 28,602 SSRs (≥5 repeats) were identified. Dinucleotide was the most common repeat motif with a frequency of 84.73%, followed by 13.78% trinucleotide, 1.34% tetranucleotide, 0.12% pentanucleotide and 0.04% hexanucleotide. From 600 primer pairs, 186 polymorphic SSRs were developed. Of these, 158 were used to screen 29 Chinese bayberry accessions and three other Myrica species: 91.14%, 89.87% and 46.84% SSRs could be used in Myrica adenophora, Myrica nana and Myrica cerifera, respectively. The UPGMA dendrogram tree showed that cultivated Myrica rubra is closely related to Myrica adenophora and Myrica nana, originating in southwest China, and very distantly related to Myrica cerifera, originating in America. These markers can be used in the construction of a linkage map and for genetic diversity studies in Myrica species. Myrica rubra has a small genome of about 323 Mb with a high level of heterozygosity. A large number of SSRs were identified, and 158 polymorphic SSR markers developed, 91% of which can be transferred to other Myrica species.
Reinhard Berndt - One of the best experts on this subject based on the ideXlab platform.
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Additions to the southern African rust fungi: four new species and two new host genera from South Africa and Angola
Mycological Progress, 2020Co-Authors: Reinhard BerndtAbstract:This paper describes four new species of rust fungi from southern Africa. Three of them, Puccinia dimorphothecae-cuneatae on Dimorphotheca cuneata (Asteraceae), P. feliciicola on Felicia filifolia (Asteraceae), and Uredo Myricae on Myrica sp. (Myricaceae), were collected in the South African Cape region, while Uromyces hessii on Zantedeschia angustiloba (Araceae) is from Angola. Rust fungi are reported for the first time on the plant genera Thereianthus (Iridaceae) and Cullumia (Asteraceae), both from South Africa. The specimen on Thereianthus was provisionally determined as Uromyces ecklonii that has been known so far only on Freesia . The rust of Cullumia showed only uredinia that were similar to Puccinia clanwilliamensis , hitherto only known on Berkheya .
