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Genomic variation across distribution of Micro-Tom, a model cultivar of tomato (Solanum lycopersicum).

Authors :
Nagasaki, Hideki
Shirasawa, Kenta
Hoshikawa, Ken
Isobe, Sachiko
Ezura, Hiroshi
Aoki, Koh
Hirakawa, Hideki
Source :
DNA Research; Oct2024, Vol. 31 Issue 5, p1-11, 11p
Publication Year :
2024

Abstract

Micro-Tom is a cultivar of tomato (Solanum lycopersicum), which is known as a major crop and model plant in Solanaceae. Micro-Tom has phenotypic traits such as dwarfism, and substantial EMS-mutagenized lines have been reported. After Micro-Tom was generated in Florida, USA, it was distributed to research institutes worldwide and used as a genetic resource. In Japan, the Micro-Tom lines have been genetically fixed; currently, three lines have been re-distributed from three institutes, but many phenotypes among the lines have been observed. We have determined the genome sequence de novo of the Micro-Tom KDRI line, one of the Micro-Tom lines distributed from Kazusa DNA Research Institute (KDRI) in Japan, and have built chromosome-scale pseudomolecules. Genotypes among six Micro-Tom lines, including three in Japan, one in the United States, one in France, and one in Brazil showed phenotypic alternation. Here, we unveiled the swift emergence of genetic diversity in both phenotypes and genotypes within the Micro-Tom genome sequence during its propagation. These findings offer valuable insights crucial for the management of bioresources. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
13402838
Volume :
31
Issue :
5
Database :
Complementary Index
Journal :
DNA Research
Publication Type :
Academic Journal
Accession number :
180860379
Full Text :
https://doi.org/10.1093/dnares/dsae016