中国首例芍药牡丹远缘杂交种的发现及鉴定

Identification of Intersectional Hybrid Between Section Moutan and Section Paeonia Found in China for the First Time

我国首次发现芍药和牡丹的远缘杂交种,将该杂交种命名为‘和谐’。通过对牡丹、芍药栽培品种及杂交种‘和谐’的观察和研究发现:‘和谐’的形态兼具芍药与牡丹且多趋于芍药的特征,从DNA水平上检测到了与牡丹、芍药共有的特征条带。从形态学和分子生物学两方面证明了‘和谐’为芍药和牡丹远缘杂交形成的宿根类植物。

This paper reported the discovery process and identification method for the first intersectional hybrid between sect.Moutan and sect.Paeonia in China,which was named after ＇Hexie＇.According to observation and comparison on morphology of sect.Moutan,sect.Paeonia and ＇Hexie＇,the morphology of ＇Hexie＇ had the features similar to both herbaceous peony and tree peony,but more similar to herbaceous peony;Using SRAP（sequence-related amplified polymorphism）molecular marker technique,the results revealed that the amplified fragments respectively unique to sect.Moutan and sect.Paeonia showed additivity in ＇Hexie＇,which proved that it was could be the hybrid of the both section.＇Hexie＇ was proposed to be perennial herb by intersectional hybridization between the two sections identified from the aspects of morphology and molecular biology.