Origins of early-flowering cherry cultivars, Prunus x kanzakura cv. Atami-zakura and Prunus x kanzakura cv. Kawazu-zakura, revealed by experimental crosses and AFLP analysis

被引：4

作者：

Ogawa, Tomoki ^{[1
]}

Kameyama, Yoshiaki ^{[1
]}

Kanazawa, Yumiko ^{[2
]}

Suzuki, Kojiro ^{[1
]}

Somego, Masataka ^{[1
]}

机构：

[1] Tokyo Univ Agr, Fac Reg Environm Sci, Setagaya Ku, Tokyo 1568502, Japan

[2] Nishi Nippon Jr Coll, Dept Landscape Architecture, Chuo Ku, Fukuoka 8100066, Japan

来源：

SCIENTIA HORTICULTURAE | 2012年 / 140卷

关键词：

Ornamental flowering cherry; Cerasus; Prunus; Prunus x kanzakura cv. Atami-zakura; Prunus x kanzakura cv. Kawazu-zakura; AFLP analysis; PHYLOGENETIC-RELATIONSHIPS; NUCLEOTIDE-SEQUENCES; GENETIC-STRUCTURE; CHLOROPLAST DNA; JAPANESE-CHERRY; ROSACEAE; YEDOENSIS; HYBRIDS;

D O I：

10.1016/j.scienta.2012.03.030

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

Flowering cherry trees (Prunus subgenus Cerasus) are characterized by beautiful flowers along with the existence of hundreds of flower ornamental cultivars. The long history of cultivation of flowering cherries, however, has caused significant confusion over names and origins. We conducted experimental crosses and AFLP analysis to reveal the origins or parentages of early-flowering cherry cultivars, Prunus x kanzakura cv. Atami-zakura and Prunus x kanzakura cv. Kawazu-zakura. Multivariate analysis based on pairwise genetic similarity (principal coordinate analysis: PCoA), and Bayesian statistical methods to find genetic group (STRUCTURE analysis) and to classify samples into different hybrid classes (NewHybrids) clearly demonstrated that (1) Prunus x kanzakura cv. Atami-zakura is the F-1 hybrid between P. jamasakura and P. campanulata, and (2) Prunus x kanzakura cv. Kawazu-zakura is the F-1 hybrid between P. Iannesiana var. speciosa and P. campanulata. The experimental crosses revealed the significant difficulty of generating these hybrids. In addition, 18 of 20 and six of six samples of Prunus x kanzakura cv. Atami-zakura and Prunus x kanzakura cv. Kawazu-zakura, respectively, are classified into a single AFLP genotype. It is apparent that the original trees or genets of these taxa have long been propagated by grafting over several tens to one hundred years. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：140 / 148

页数：9