Cotton

Genetic gains from selection for fiber traits in Gossypium hirsutum L.

G. M. P. de Faria, Sanchez, C. F. B., de Carvalho, L. P., M. Oliveira, daSilva, and Cruz, C. D., Genetic gains from selection for fiber traits in Gossypium hirsutum L., vol. 15, no. 4, p. -, 2016.

INTRODUCTION

Brazil is among the five largest cotton producers in the world, cultivating the species Gossypium hirsutum L. r. latifolium Hutch. According to Instituto Brasileiro de Geografia e Estatística (IBGE, 2016), cotton production in Brazil has grown every year, producing more than 4.0 million tons of cotton annually.

Methylation-sensitive amplified polymorphism analysis of Verticillium wilt-stressed cotton (Gossypium)

W. Wang, Zhang, M., Chen, H. D., Cai, X. X., Xu, M. L., Lei, K. Y., Niu, J. H., Deng, L., Liu, J., Ge, Z. J., Yu, S. X., Wang, B. H., Wang, W., Zhang, M., Chen, H. D., Cai, X. X., Xu, M. L., Lei, K. Y., Niu, J. H., Deng, L., Liu, J., Ge, Z. J., Yu, S. X., and Wang, B. H., Methylation-sensitive amplified polymorphism analysis of Verticillium wilt-stressed cotton (Gossypium), vol. 15, p. -, 2016.

In this study, a methylation-sensitive amplification polymorphism analysis system was used to analyze DNA methylation level in three cotton accessions. Two disease-sensitive near-isogenic lines, PD94042 and IL41, and one disease-resistant Gossypium mustelinum accession were exposed to Verticillium wilt, to investigate molecular disease resistance mechanisms in cotton. We observed multiple different DNA methylation types across the three accessions following Verticillium wilt exposure. These included hypomethylation, hypermethylation, and other patterns.

Molecular cloning and analysis of a receptor-like promoter of Gbvdr3 gene in sea island cotton

B. - J. Zhang, Zhang, H. - P., Chen, Q. - Z., Tang, N., Wang, L. - K., Wang, R. - F., Zhang, B. - L., Zhang, B. - J., Zhang, H. - P., Chen, Q. - Z., Tang, N., Wang, L. - K., Wang, R. - F., and Zhang, B. - L., Molecular cloning and analysis of a receptor-like promoter of Gbvdr3 gene in sea island cotton, vol. 15, p. -, 2016.

Verticillium wilt caused by soil borne fungus Verticillium dahliae could significantly reduce cotton yield. The Ve1 homologous gene Gbvdr3 is resistant to Verticillium wilt. In order to understand of the function of the promoter Gbvdr3 in Gossypium barbadense, the promoter region of the receptor-like gene Gbvdr3 was obtained by genome walking, and the cis-element in the promoter was identified using the PLACE software in this study.

Molecular identification of Fusarium species isolated from transgenic insect-resistant cotton plants in Mexicali valley, Baja California

T. Gonzalez-Soto, González-Mendoza, D., Troncoso-Rojas, R., Morales-Trejo, A., Cecena-Duran, C., Garcia-Lopez, A., and Grimaldo-Juarez, O., Molecular identification of Fusarium species isolated from transgenic insect-resistant cotton plants in Mexicali valley, Baja California, vol. 14, pp. 11739-11744, 2015.

Cotton production in the Mexicali valley is adversely affected by wilt and root rot disease associated with Fusarium species. In the present study, we sought to isolate and identify the Fusarium species in the rhizosphere of transgenic insect-resistant cotton plants grown in the Mexicali valley. Our analyses isolated four native fungi from the rhizosphere of cotton plants, namely, T-ICA01, T-ICA03, T-ICA04, and T-ICA08.

Analysis of upland cotton (Gossypium hirsutum) response to Verticillium dahliae inoculation by transcriptome sequencing

B. X. Shao, Zhao, Y. L., Chen, W., Wang, H. M., Guo, Z. J., Gong, H. Y., Sang, X. H., Cui, Y. L., and Wang, C. H., Analysis of upland cotton (Gossypium hirsutum) response to Verticillium dahliae inoculation by transcriptome sequencing, vol. 14, pp. 13120-13130, 2015.

Verticillium wilt is one of the main diseases in cotton (Gossypium hirsutum), severely reduces yield and fiber quality, and is difficult to be con­trolled effectively. At present, the molecular mechanism that confers resistance to this disease is unclear. Transcriptome sequencing is an important method to detect resistance genes, explore metabolic pathways, and study resistance mechanisms. In this study, the transcriptome of a disease-resistant inbred cot­ton line inoculated with Verticillium dahliae was sequenced.

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