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Article History

Received: 28 May 2018

Accepted: 26 September 2018

First Online: 12 October 2018

Ethics approval and consent to participate

: Whole plants and siliques were collected for these experiment by Prof. Shujin Hua from the Zheijiang Academy of Agricultural Sciences. The fields from which the materials are collected are maintained by the ZAAS and are freely accessible to other researchers on request. During the execution of these experiments, all plant materials collected were either consumed or destroyed at the conclusion of the work. Individuals wishing access to these fields and similar plant collections may contact the authors and in particular SH who oversees these fields. All collection of plant material was done under compliance with any applicable institutional, national, or international guidelines and as such no specific permissions and/or licenses were required in order to comply with the Convention on the Trade in Endangered Species of Wild Fauna and Flora since these plants fall outside of these jurisdiction.

: Not applicable.

: The authors declare that they have no competing interests.

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