Tomato

Analysis of genetic diversity and population structure in a tomato (Solanum lycopersicum L.) germplasm collection based on single nucleotide polymorphism markers

T. Wang, Zou, Q. D., Qi, S. Y., Wang, X. F., Wu, Y. Y., Liu, N., Zhang, Y. M., Zhang, Z. J., Li, H. T., Wang, T., Zou, Q. D., Qi, S. Y., Wang, X. F., Wu, Y. Y., Liu, N., Zhang, Y. M., Zhang, Z. J., and Li, H. T., “Analysis of genetic diversity and population structure in a tomato (Solanum lycopersicum L.) germplasm collection based on single nucleotide polymorphism markers”, vol. 15, p. -, 2016.

Knowledge of genetic diversity is important to assist breeders in the selection of parental materials and in the design of breeding programs. In this study, we genotyped 348 inbred tomato lines, representing vintage and contemporary fresh-market varieties, by using 52 single nucleotide polymorphisms (SNPs); 45 of these were found to be polymorphic. The average minor allele frequency and unbiased expected heterozygosity were 0.315 and 0.356, respectively.

Differential responses of one hundred tomato genotypes grown under cadmium stress

M. M. Hussain, Saeed, A., Khan, A. A., Javid, S., and Fatima, B., “Differential responses of one hundred tomato genotypes grown under cadmium stress”, vol. 14, pp. 13162-13171, 2015.

Due to increased global concern over the deleterious effects of toxic heavy metals in the environment, it has become necessary to develop plant genotypes that limit the uptake of heavy metals to aerial edible parts. To address this concern, we performed a glasshouse experiment to assess variations within tomato germplasm for cadmium (Cd) tolerance under control conditions and under simulated stress conditions. Significant differences (P < 0.01) were observed among all genotypes at both Cd levels (3 ppm and 6 ppm).

Cloning and transformation of INDUCER of CBF EXPRESSION1 (ICE1) in tomato

X. H. Yu, Juan, J. X., Gao, Z. L., Zhang, Y., Li, W. Y., and Jiang, X. M., “Cloning and transformation of INDUCER of CBF EXPRESSION1 (ICE1) in tomato”, vol. 14, pp. 13131-13143, 2015.

The tomato plant (Solanum lycopersicum Mill.) is sensitive to cold, and low field temperatures can result in shortened growth periods and decreased crop yield. Transcription of CRT/DRE-binding factor (CBF) is regulated by INDUCER of CBF EXPRESSION1 (ICE1). CBF activates many downstream genes that confer cold tolerance on plants. ICE1 has been used in genetic engineering to improve cold-resistance in several plant species.

Comprehensive identification and expression analysis of Hsp90s gene family in Solanum lycopersicum

W. S. Zai, Miao, L. X., Xiong, Z. L., Zhang, H. L., Ma, Y. R., Li, Y. L., Chen, Y. B., and Ye, S. G., “Comprehensive identification and expression analysis of Hsp90s gene family in Solanum lycopersicum”, vol. 14, pp. 7811-7820, 2015.

Heat shock protein 90 (Hsp90) is a protein produced by plants in response to adverse environmental stresses. In this study, we identified and analyzed Hsp90 gene family members using a bioinformatic method based on genomic data from tomato (Solanum lycopersicum L.). The results illustrated that tomato contains at least 7 Hsp90 genes distributed on 6 chromosomes; protein lengths ranged from 267-794 amino acids. Intron numbers ranged from 2-19 in the genes.

In silico analysis of gene content in tomato genomic regions mapped to the Ty-2 resistance gene

Y. F. Liu, Wan, H. J., Wei, Y. P., Wang, R. Q., Ruan, M. Y., Ye, Q. J., Li, Z. M., Zhou, G. Z., Yao, Z. P., and Yang, Y. J., “In silico analysis of gene content in tomato genomic regions mapped to the Ty-2 resistance gene”, vol. 14, pp. 7947-7956, 2015.

Tomato yellow leaf curl virus is one of the main diseases affecting tomato production worldwide. Previous studies have shown that Ty-2 is an important resistance gene located between molecular markers C2_At2g28250 (82.3 cM) and T0302 (89.0 cM), and exhibits strong re­sistance to tomato yellow leaf curl virus in Asia. In this study, Ty-2 can­didate genes were subjected to bioinformatic analysis for the sequenced tomato genome.

Subscribe to Tomato