文献类型：期刊文献

英文题名：Applicability of leaf morphology and intersimple sequence repeat markers in classification of tree peony (Paeoniaceae) cultivars

作者：Suo, ZL Li, WY Yao, J Zhang, HJ Zhang, ZM Zhao, DX

第一作者：Suo, Zhi-Li

通信作者：Suo, ZL[1]

机构：[1]Chinese Acad Sci, Lab Systemat & Evolut Bot, Beijing 100093, Peoples R China;[2]Chinese Acad Forestry, Inst Forestry Policy & Informat, Beijing 100091, Peoples R China;[3]Chinese Acad Sci, Beijing Bot Garden, Beijing 100093, Peoples R China;[4]Yutian Tree Peony Nursey, Heze 275001, Shandong Prov, Peoples R China

年份：2005

卷号：40

期号：2

起止页码：329-334

外文期刊名：HORTSCIENCE

收录：;EI(收录号：2005108873319);Scopus(收录号：2-s2.0-14344249943);WOS:【SCI-EXPANDED(收录号:WOS:000227391400018)】；

语种：英文

外文关键词：Poeonia suffruticosa; cultivar identification; leaf morphology; intersimple sequence repeat marker; ISSR

摘要：Tree peony cultivars are usually classified according to flower characteristics (flower form and flower color) which are commonly affected by environmental influences and developmental levels. Judgment of flower forms may also depend on the observer. Precise and rapid cultivar identification methods are also required to manage cultivar collections as well as tree peony breeding programs. The objective of this paper is to analyze the discriminatory ability of leaf morphology and Intersimple sequence repeat (ISSR) marker systems for tree peony cultivars. As a result, although there exist large variations of leaf morphology of tree peony cultivars, the morphological characteristics of biternately compound leaves 3, 4, and 5 from the base of a shoot at the middle part of a plant are relatively stable with smaller variations within cultivars (2.7% to 27.1%, 16.8% on average) and with larger differentiations among cultivars (72.9% to 97.3%, 83.2% on average). Statistical and principal components analyses indicate that 12 leaf morphological characteristics are valuable for cultivar classification. ISSR markers present a precisely discriminatory power in tree peony cultivar classification without environmental influences. The cultivars with multiple flower forms, which makes it difficult to make judgment by means of a flower-form-based classification system, have been significantly characterized using leaf morphology or ISSR markers.