Cucumber

Assessment of genetic diversity of cucumber cultivars in China based on simple sequence repeats and fruit traits

Y. T. Yang, Liu, Y., Qi, F., Xu, L. L., Li, X. Z., Cong, L. J., Guo, X., Chen, S. X., and Fang, Y. L., “Assessment of genetic diversity of cucumber cultivars in China based on simple sequence repeats and fruit traits”, vol. 14, pp. 19028-19039, 2015.

The cucumber (Cucumis sativus L.) is an important crop grown worldwide. In this study, the genetic diversity of 42 cucumber cultivars in China was analyzed using 51 pairs of simple sequence repeat (SSR) primers. These primers identified 129 polymorphic loci, 95.6% of which were polymorphic. The mean effective number of alleles, mean Nei’s gene diversity, and mean Shannon’s information index were 0.36, 0.16, and 0.21, respectively.

Effect of ethyl methyl sulfonate concentration and different treatment conditions on germination and seedling growth of the cucumber cultivar Chinese long (9930)

S. N. M. Shah, Gong, Z. - H., Arisha, M. H., Khan, A., and Tian, S. - L., “Effect of ethyl methyl sulfonate concentration and different treatment conditions on germination and seedling growth of the cucumber cultivar Chinese long (9930)”, vol. 14, pp. 2440-2449, 2015.

We attempted to create a new germplasm of cucumber cultivar Chinese long (9930) using different doses of ethyl methyl sulfonate (EMS) to induce variability. We tested EMS concentration (0, 0.5, 1.0, 1.5, 2, 3% v/v) with post-treatment (0.1 M Na2S2O3 and water), EMS concentration (0, 0.5, 1.0, 1.5% v/v) over different treatment times (8, 16, 24 h), and EMS concentration (0, 0.5, 1.0, 1.5% v/v) with different treatment temperatures (20 and 28°C).

Effects of exogenous 5-aminolevulinic acid on PIP1 and NIP aquaporin gene expression in seedlings of cucumber cultivars subjected to salinity stress

F. Yan, Qu, D., Zhao, Y. Y., Hu, X. H., Zhao, Z. Y., Zhang, Y., and Zou, Z. R., “Effects of exogenous 5-aminolevulinic acid on PIP1 and NIP aquaporin gene expression in seedlings of cucumber cultivars subjected to salinity stress”, vol. 13, pp. 2563-2573, 2014.

Aquaporins play a direct role in plant water relation under salt stress, but the effects of 5-aminolevulinic acid (ALA) on aquaporin gene expression in salt-treated plants remain unknown. This study investigated the potential effects of exogenous ALA (50 mg/dm3) on aquaporin expression levels under salt stress (75 mM NaCl) in the salt-sensitive (Jinchun No.4) and the relatively salt-tolerant cucumber (Jinyou No.1) seedlings.

Genome-wide identification, characterization, and expression analysis of the MLO gene family in Cucumis sativus

S. J. Zhou, Jing, Z., and Shi, J. L., “Genome-wide identification, characterization, and expression analysis of the MLO gene family in Cucumis sativus”, vol. 12, pp. 6565-6578, 2013.

Mildew resistance locus o (MLO) is a plant-specific seven-transmembrane (TM) gene family. Several studies have revealed that certain members of the MLO gene family mediate powdery mildew susceptibility in three plant species, namely, Arabidopsis, barley, and tomato. The sequenced cucumber genome provides an opportunity to conduct a comprehensive overview of the MLO gene family.

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