Transformation and Overexpression of Primary Cell Wall Synthesis-Related Zinc Finger Gene Gh_A07G1537 to Improve Fiber Length in Cotton

文献类型： 外文期刊

第一作者： Razzaq, Abdul

作者： Razzaq, Abdul;Razzaq, Abdul;Zafar, Muhammad Mubashar;Qun, Ge;Deng, Xiaoying;Hafeez, Abdul;Liu, Aiying;Ren, Maozhi;Shang, Haihong;Shi, Yuzhen;Gong, Wankui;Yuan, Youlu;Li, Pengtao;Ali, Arfan;Irfan, Muhammad

作者机构：

关键词： CSSLs; fiber length; zinc finger; genetic transformation; cotton biology

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.754； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： Molecular interventions have helped to explore the genes involved in fiber length, fiber strength, and other quality parameters with improved characteristics, particularly in cotton. The current study is an extension and functional validation of previous findings that Gh_A07G1537 influences fiber length in cotton using a chromosomal segment substitution line MBI7747 through RNA-seq data. The recombinant Gh_A07G1537 derived from the MBI7747 line was over-expressed in CCRI24, a genotype with a low profile of fiber quality parameters. Putative transformants were selected on MS medium containing hygromycin (25mg/ml), acclimatized, and shifted to a greenhouse for further growth and proliferation. Transgene integration was validated through PCR and Southern Blot analysis. Stable integration of the transgene (Delta Gh_A07G1537) was validated by tracking its expression in different generations (T-0, T-1, and T-2) of transformed cotton plants. It was found to be 2.97-, 2.86-, and 2.92-folds higher expression in T-0, T-1, and T-2 plants, respectively, of transgenic compared with non-transgenic cotton plants. Fiber quality parameters were also observed to be improved in the engineered cotton line. Genetic modifications of Gh_A07G1537 support the improvement in fiber quality parameters and should be appreciated for the textile industry.

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