Title |
Evidence of cryptic introgression in tomato (Solanum lycopersicum L.) based on wild tomato species alleles
|
---|---|
Published in |
BMC Plant Biology, August 2012
|
DOI | 10.1186/1471-2229-12-133 |
Pubmed ID | |
Authors |
Joanne A Labate, Larry D Robertson |
Abstract |
Many highly beneficial traits (e.g. disease or abiotic stress resistance) have been transferred into crops through crosses with their wild relatives. The 13 recognized species of tomato (Solanum section Lycopersicon) are closely related to each other and wild species genes have been extensively used for improvement of the crop, Solanum lycopersicum L. In addition, the lack of geographical barriers has permitted natural hybridization between S. lycopersicum and its closest wild relative Solanum pimpinellifolium in Ecuador, Peru and northern Chile. In order to better understand patterns of S. lycopersicum diversity, we sequenced 47 markers ranging in length from 130 to 1200 bp (total of 24 kb) in genotypes of S. lycopersicum and wild tomato species S. pimpinellifolium, Solanum arcanum, Solanum peruvianum, Solanum pennellii and Solanum habrochaites. Between six and twelve genotypes were comparatively analyzed per marker. Several of the markers had previously been hypothesized as carrying wild species alleles within S. lycopersicum, i.e., cryptic introgressions. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Netherlands | 4 | 4% |
France | 1 | <1% |
Cuba | 1 | <1% |
Brazil | 1 | <1% |
India | 1 | <1% |
United Kingdom | 1 | <1% |
United States | 1 | <1% |
Unknown | 94 | 90% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 33 | 32% |
Student > Ph. D. Student | 18 | 17% |
Student > Master | 11 | 11% |
Professor > Associate Professor | 7 | 7% |
Student > Bachelor | 5 | 5% |
Other | 17 | 16% |
Unknown | 13 | 13% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 71 | 68% |
Biochemistry, Genetics and Molecular Biology | 10 | 10% |
Environmental Science | 2 | 2% |
Computer Science | 1 | <1% |
Immunology and Microbiology | 1 | <1% |
Other | 2 | 2% |
Unknown | 17 | 16% |