Phylogenetic relationships in the stone fruit group of Prunus as revealed by restriction fragment analysis of chloroplast DNA.
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概要
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In order to clarify the genetic relationships among stone fruits, a restriction fragment analysis of chloroplast DNAs (cpDNAs) was applied to cultivated Prunus species, whose genetic diagnoses are difficult because of their heterogeneity and long life span. Chloroplast DNAs (cpDNAs) were extracted from leaves of nine stone fruit accessions covering six species of Prunus. A restriction fragment analysis was conducted by gel elcetrophoresis after digestion with these endonucleases. The genome sizes of the cpDNAs were about 135-139 kbp, and the fruits were classified into seven chloroplast genome types according to their restriction fragment patterns. Two peach cultivars and nectarine were found to harbor identical plastomes, differing from those of two wild peaches and the European plum. This suggests that two culvivated peaches (P. persica) did not receive the cytoplasm from the wild peaches, P. mira and P. davidiana. Phylogenetic relationships among these types were then estimated based on the shared common fragments among the species.
- 日本遺伝学会の論文
著者
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Sasakuma Tetsuo
Kihara Inst. Biol. Res. Yokohama City Univ.
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Ogihara Yasunari
Kihara Inst. Biol. Res. Yokohama City Univ.
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UEMATSU Chiyomi
Kihara Institute for Biological Research, Yokohama City University
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