**Acknowledgements**

We thank Coordenação de Aperfeiçoamento de Pessoal de nível Superior (CAPES) and Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP proc. nº 2017/23882-0) for financial support and the Laboratory of Plant Anatomy at the Institute of Biosciences of the University of Sao Paulo, where the analyses were performed.

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