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Overexpression of Polypogon fugax Type I-Like MADS-Box Gene PfAGL28 Affects Flowering Time and Pod Formation in Transgenic Arabidopsis

文献类型： 外文期刊

作者： Zhou, Feng-Yan 1 ; Han, Yun-Jing 1 ; Wang, Yan-Hui 2 ; Yao, Chuan-Chun 1 ; Zhang, Yong 1 ;

作者机构： 1.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, Hefei 230001, Peoples R China

2.Guangxi Acad Agr Sci, Inst Plant Protect, Guangxi Key Lab Biol Crop Dis & Insect Pests, Nanning 530007, Peoples R China

关键词： Polypogon fugax; Herbicide resistance; Flowering regulation; Type I-MADS-box gene; Arabidopsis thaliana

期刊名称：PLANT MOLECULAR BIOLOGY REPORTER （ 影响因子：1.595； 五年影响因子：2.042 ）

ISSN： 0735-9640

年卷期：

页码：

收录情况： SCI

摘要： Herbicide-driven selective pressures on weeds promote genetic changes in various physiological traits, including flowering time and fructification, allowing weeds to evade control techniques. Previously, we showed that early flowering was associated with resistance to acetyl coenzyme A carboxylase (ACCase) inhibitor herbicides in a population of Polypogon fugax. Here, we isolated the type I-like MADS-box gene PfAGL28 from ACCase inhibitor-resistant P. fugax, and showed that this gene was strongly upregulated in the resistant compared to susceptible populations at the flowering stage. Overexpression of PfAGL28 in Arabidopsis thaliana resulted in the early-flowering phenotype and early seed formation likely due to the upregulation of FLOWERING LOCUS T (FT), and AGMOUS-LIKE 23 (AGL23), AGMOUS-LIKE 61 (AGL61), and AGMOUS-LIKE 80 (AGL80). These results indicate that PfAGL28 gene is likely involved in the regulation of early flowering and pod formation in P. fugax. Our study thus provides a reference for future explorations of the flowering mechanisms of herbicide-resistant weeds.

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