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Horticulture Research 9,
Article number: uhac106 (2022)
doi: https://doi.org/10.1093/hr/uhac106
Views: 330
Received: 25 Oct 2021
Accepted: 23 Apr 2022
Published online: 17 May 2022
Dear Editor,
In recent years, two species of tree peony have been recognized as potential oil crops, Paeonia rockii and Paeonia ostii [1]. In 2011, P. ostii seeds, which contain 27–33% oil, were identified as novel sources of α-linolenic acid (ALA) for seed oil production in China [2, 3]. Interestingly, peony seed reserves are stored in the endosperm rather than the embryo, but little research has focused on peony endosperm development [4]. Traditional edible oil crops such as rapeseed, soybean, and peanut store oil mainly in the embryo, specifically in the cotyledons. By contrast, tree peony produces oil primarily in the endosperm, distinguishing it from traditional oil crops.