The Wild Ancestor Of The Modern Cultivated Tomato Solanum Licarsicum

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The researchers looked at the genome sequence of the tomato’s wild ancestor. Scientists at the Boyce Thompson Institute have produced a high-quality chromosome-scale genome sequence for today’s tomato Solanum pimpinellifolium, the wild ancestor of the modern cultivated tomato Solanum licarsicum.

Botanisc Tidschrift, Solanum pimpinellifolium in 1872. Tomato is the world’s leading vegetable crop with a total production of 182 million tons and exceeded $ 60 billion in 2018. Solanum penicillifolium, bearing small, round, red fruits, he is a cultivator of wild ancestors. Tomatoes.

It was domesticated in South America to give rise to the variant Solanum lycopersicum. Cerasiform, which was later improved with the large-fruited tomato Solanum lycopersicum var. Lycopersicum in Mesoamerica. However, other groups had previously sequenced Solanum pimpinellifolium.

The new reference genomes are more complete and accurate thanks to state-of-the-art sequencing techniques that can read very long DNA fragments, according to researchers from the Boyce Thompson Institute and Robert W. co-lead author Dr. Zhangjun Fei said. Hawley Center for Agriculture and Health at the US Department of Agricultural Research Services.

“Older sequencing techniques that read small pieces of DNA can identify mutations at the single base level,” said postdoctoral scientist Dr. Doyce of the Boyce Thompson Institute. Shan Wu said. “But they are not good at finding structural differences, such as insertions, deletions, inversions or duplications of large parts of the DNA.”

“Many of the known traits of tomatoes are caused by structural adaptations, so we have focused on them,” said Dr. Fei. “Structural adaptations are also understood because they are more difficult to identify.” The scientists found their reference Solanum pimpinellifolium genome compared to cultivated tomatoes, known as Heinz 1706, and more than 92,000 structural genetic variants.

They then battled the tomato pangenome, a database of more than 725 closely related wild tomato genomes and genomes, and discovered structural variants related to several important traits. For example, modern cultivated tomatoes have some genomic deletions that reduce their levels of lycopene, a red pigment with nutritional value, and an insert that reduces their sucrose content.

A co-author researcher from the Boyce Thompson Institute and Robert W. Drs. Jim Giovannoni said: “The identification of additional genetic diversity captured in the Solanum pimpinellifolium genome provides opportunities to recover some of these important characteristics from store-bought tomatoes.”

Holly Center for Agriculture and Health at the Agricultural Research Service of the United States Department of Agriculture. The authors found a number of other structural variants that may be of interest in many disease-resistant genes to include variants involved in variants and fruit shape, ripening, hormonal regulation, metabolism, and flower, seed, and leaf development.

They also found structural motifs associated with the regulation of the expression of genes involved in lipid biosynthesis in the skin of the fruit, which may help improve the subsequent yield of the fruit. “Dr. Fei said,” A lot of genetic diversity was lost during tomato domestication. “These figures can help bring back some of the tomato variety and result in tomatoes taste better, more nutritious and more flexible.”

The results appear in the journal Nature Communications. The tomato is a genomic reservoir for responding wild plant breeders. Thousands of years ago, people in South America began to domesticate Solanum pimpinellifolium, a vegetable plant with a small, intense flavor. Over time, the plant evolved into S. lycopersicum, the modern cultivated tomato.

Although today’s tomatoes are larger and easier to grow than their wild ancestors, they are less resistant to disease and environmental stresses, such as drought and saline soils. Researchers at the Boys Thompson Institute, led by Zhangjun Fei, created a high-quality reference genome for S. pimpinellifolium and discovered parts of the genome that reduce fruit taste, size and ripening, stress tolerance, and resistance to The diseases.

The results are published in Nature Communications. For example, Fei said, “This reference will allow genome researchers and plant breeders to improve traits such as fruit quality and stress tolerance in tomatoes.” Pimpelinlifolium yes. It faded over time in the form of Lycopersicum.

Fei is a member of the BTI faculty and a related co-author on the paper, as well as an assistant professor in the School of Integrative Plant Science (SIPS) at Cornell University. Although other groups earlier in the s. Pimpinellifolium was sequenced, Fei said, adding that the reference genome is more complete and accurate, thanks to some of the cutting-edge sequencing technologies that are capable of reading very long pieces of DNA.

“Older sequencing techniques that read small pieces of DNA can identify mutations at the single base level,” said Shen Wu, Fei in the paper and a co-author in the lab. “But they are not good at finding structural adaptations such as insertion, deletion, inversion, or duplication of large parts of DNA.”

“Many known traits of tomatoes are caused by structural adaptations, so we focus on them,” Fei said. “Structural adaptations are also understood because they are more difficult to identify.” Fei’s group compared their reference S. pimpinellifolium genome to cultivated tomatoes, called Heinz 1706, and found more than 92,000 structural variants.

The researchers then searched the tomato pangenome, a database with a genome of more than 725 genomes, and related wild tomatoes, and discovered structural variants related to several important traits. For example, modern cultivated tomatoes have some genomic deletions that reduce their levels of lycopene, a red pigment with nutritional value, and an insert that reduces their sucrose content.

Jim Giovannoni, a BTI faculty member and study co-author, notes that many consumers are disappointed in the quality and taste of modern-grown tomatoes because past breeding efforts ignored those traits in favor of yield and yield. “The identification of additional genetic diversity captured in the S. pimpinellifolium genome gives breeders the opportunity to return some of these important characteristics to Stor-Tomato,” said Giovannoni.

And assistant professor at SIPS and also an American scientist. Agricultural Research Service of the Department of Agriculture. The researchers found several other structural variants that may be of interest to growers, including variants in several disease resistance genes and genes involved in fruit size, ripening, hormonal regulation, metabolism, and flower development. seeds and leaves?

The group also found structural motifs associated with the regulation of the expression of genes involved in lipid biosynthesis in the skin of the fruit, which may help improve the subsequent yield of the fruit. Such a wide variety was lost during tomato domestication, Fei said.

These numbers can help bring in some diversity and can result in tomatoes being better, more nutritious and hardier. Reissued courtesy of the Boyce Thompson Institute. Photo: The fruits of Solanum pimpinellifolium, the wild ancestor of modern cultivated tomatoes, are about the size of blueberries. Credit: Scott Peacock and CM Rick Tomato’s Center for Genetic Resources.

The researchers looked at the genome sequence of the tomato’s wild ancestor. Scientists at the Boyce Thompson Institute have produced a high-quality chromosome-scale genome sequence for today’s tomato Solanum pimpinellifolium, the wild ancestor of the modern cultivated tomato Solanum licarsicum.

Botanisc Tidschrift, Solanum pimpinellifolium in 1872. Tomato is the world’s leading vegetable crop with a total production of 182 million tons and exceeded $ 60 billion in 2018. Solanum penicillifolium, bearing small, round, red fruits, he is a cultivator of wild ancestors. Tomatoes.

It was domesticated in South America to give rise to the variant Solanum lycopersicum. Cerasiform, which was later improved with the large-fruited tomato Solanum lycopersicum var. Lycopersicum in Mesoamerica. However, other groups had previously sequenced Solanum pimpinellifolium.

The new reference genomes are more complete and accurate thanks to state-of-the-art sequencing techniques that can read very long DNA fragments, according to researchers from the Boyce Thompson Institute and Robert W. co-lead author Dr. Zhangjun Fei said. Hawley Center for Agriculture and Health at the US Department of Agricultural Research Services.

“Older sequencing techniques that read small pieces of DNA can identify mutations at the single base level,” said postdoctoral scientist Dr. Doyce of the Boyce Thompson Institute. Shan Wu said. “But they are not good at finding structural differences, such as insertions, deletions, inversions or duplications of large parts of the DNA.”

“Many of the known traits of tomatoes are caused by structural adaptations, so we have focused on them,” said Dr. Fei. “Structural adaptations are also understood because they are more difficult to identify.” The scientists found their reference Solanum pimpinellifolium genome compared to cultivated tomatoes, known as Heinz 1706, and more than 92,000 structural genetic variants.

They then battled the tomato pangenome, a database of more than 725 closely related wild tomato genomes and genomes, and discovered structural variants related to several important traits. For example, modern cultivated tomatoes have some genomic deletions that reduce their levels of lycopene, a red pigment with nutritional value, and an insert that reduces their sucrose content.

A co-author researcher from the Boyce Thompson Institute and Robert W. Drs. Jim Giovannoni said: “The identification of additional genetic diversity captured in the Solanum pimpinellifolium genome provides opportunities to recover some of these important characteristics from store-bought tomatoes.”

Holly Center for Agriculture and Health at the Agricultural Research Service of the United States Department of Agriculture. The authors found a number of other structural variants that may be of interest in many disease-resistant genes to include variants involved in variants and fruit shape, ripening, hormonal regulation, metabolism, and flower, seed, and leaf development.

They also found structural motifs associated with the regulation of the expression of genes involved in lipid biosynthesis in the skin of the fruit, which may help improve the subsequent yield of the fruit. “Dr. Fei said,” A lot of genetic diversity was lost during tomato domestication. “These figures can help bring back some of the tomato variety and result in tomatoes taste better, more nutritious and more flexible.”

The results appear in the journal Nature Communications. The tomato is a genomic reservoir for responding wild plant breeders. Thousands of years ago, people in South America began to domesticate Solanum pimpinellifolium, a vegetable plant with a small, intense flavor. Over time, the plant evolved into S. lycopersicum, the modern cultivated tomato.

Although today’s tomatoes are larger and easier to grow than their wild ancestors, they are less resistant to disease and environmental stresses, such as drought and saline soils. Researchers at the Boys Thompson Institute, led by Zhangjun Fei, created a high-quality reference genome for S. pimpinellifolium and discovered parts of the genome that reduce fruit taste, size and ripening, stress tolerance, and resistance to The diseases.

The results are published in Nature Communications. For example, Fei said, “This reference will allow genome researchers and plant breeders to improve traits such as fruit quality and stress tolerance in tomatoes.” Pimpelinlifolium yes. It faded over time in the form of Lycopersicum.

Fei is a member of the BTI faculty and a related co-author on the paper, as well as an assistant professor in the School of Integrative Plant Science (SIPS) at Cornell University. Although other groups earlier in the s. Pimpinellifolium was sequenced, Fei said, adding that the reference genome is more complete and accurate, thanks to some of the cutting-edge sequencing technologies that are capable of reading very long pieces of DNA.

“Older sequencing techniques that read small pieces of DNA can identify mutations at the single base level,” said Shen Wu, Fei in the paper and a co-author in the lab. “But they are not good at finding structural adaptations such as insertion, deletion, inversion, or duplication of large parts of DNA.”

“Many known traits of tomatoes are caused by structural adaptations, so we focus on them,” Fei said. “Structural adaptations are also understood because they are more difficult to identify.” Fei’s group compared their reference S. pimpinellifolium genome to cultivated tomatoes, called Heinz 1706, and found more than 92,000 structural variants.

The researchers then searched the tomato pangenome, a database with a genome of more than 725 genomes, and related wild tomatoes, and discovered structural variants related to several important traits. For example, modern cultivated tomatoes have some genomic deletions that reduce their levels of lycopene, a red pigment with nutritional value, and an insert that reduces their sucrose content.

Jim Giovannoni, a BTI faculty member and study co-author, notes that many consumers are disappointed in the quality and taste of modern-grown tomatoes because past breeding efforts ignored those traits in favor of yield and yield. “The identification of additional genetic diversity captured in the S. pimpinellifolium genome gives breeders the opportunity to return some of these important characteristics to Stor-Tomato,” said Giovannoni.

And assistant professor at SIPS and also an American scientist. Agricultural Research Service of the Department of Agriculture. The researchers found several other structural variants that may be of interest to growers, including variants in several disease resistance genes and genes involved in fruit size, ripening, hormonal regulation, metabolism, and flower development. seeds and leaves?

The group also found structural motifs associated with the regulation of the expression of genes involved in lipid biosynthesis in the skin of the fruit, which may help improve the subsequent yield of the fruit. Such a wide variety was lost during tomato domestication, Fei said.

These numbers can help bring in some diversity and can result in tomatoes being better, more nutritious and hardier. Reissued courtesy of the Boyce Thompson Institute. Photo: The fruits of Solanum pimpinellifolium, the wild ancestor of modern cultivated tomatoes, are about the size of blueberries. Credit: Scott Peacock and CM Rick Tomato’s Center for Genetic Resources.

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