naa a22 4500 510730140 CHVBK 20180411082949.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11295-012-0544-1 doi (NATIONALLICENCE)springer-10.1007/s11295-012-0544-1 A phylogenetic network of wild Ussurian pears ( Pyrus ussuriensis Maxim.) in China revealed by hypervariable regions of chloroplast DNA [Elektronische Daten] [Tana Wuyun, Teng Ma, Chiyomi Uematsu, Hironori Katayama] In order to understand the genetic diversity of wild Ussurian pears in China, chloroplast DNA (cpDNA) of 186 wild accessions from 12 populations in Inner Mongolia, Heilongjiang and Jilin Provinces and 51 Chinese and European pear cultivars including Pyrus ussuriensis, Pyrus pyrifolia, Pyrus bretschneideri, Pyrus sinkiangensis and Pyrus communis were investigated. Each accession was classified into one of three types (types A, B and C) based on two large deletions in the hypervariable regions between the accD-psaI and rps16-trnQ genes. Thirty haplotypes were identified by 32 mutations including 17 gaps (in/dels) and 15 base changes. Haplotype network analysis revealed that wild Chinese Ussurian pears could be grouped into subgroup I of type A. A haplotype, Hcp3, in subgroup I detected in Heilongjiang and Jilin Provinces was considered to be a divergent centre in Chinese Ussurian pears. However, the genetic diversity of wild accessions revealed by the two hypervariable regions was quite low. In particular, 98% of wild Ussurian accessions in Inner Mongolia shared an identical haplotype Hcp1 and are, therefore, monomorphic. In comparison, Chinese pear cultivars were more divergent. These results suggest that the cpDNAs from wild Ussurian pears in Inner Mongolia have specifically differentiated compared to those from pears of other areas. The number of wild Ussurian pears has been decreasing because of desertification and land development, therefore conservation is needed. Springer-Verlag, 2012 Wild Ussurian pear nationallicence Pyrus ussuriensis nationallicence Genetic diversity nationallicence Chloroplast DNA nationallicence Conservation nationallicence Wuyun Tana Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees and Non-wood Forest Products of SFA, Central South University of Forestry and Technology, 410004, Changsha, Hunan, People's Republic of China aut Ma Teng Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees and Non-wood Forest Products of SFA, Central South University of Forestry and Technology, 410004, Changsha, Hunan, People's Republic of China aut Uematsu Chiyomi Botanical Gardens, Graduate School of Science, Osaka City University, 576-0004, Osaka, Japan aut Katayama Hironori Food Resources Education and Research Center, Kobe University, 675-2103, Hyogo, Japan aut Tree Genetics & Genomes Springer-Verlag 9/1(2013-02-01), 167-177 1614-2942 9:1<167 2013 9 11295 https://doi.org/10.1007/s11295-012-0544-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11295-012-0544-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wuyun Tana Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees and Non-wood Forest Products of SFA, Central South University of Forestry and Technology, 410004, Changsha, Hunan, People's Republic of China aut NATIONALLICENCE 700 1- Ma Teng Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees and Non-wood Forest Products of SFA, Central South University of Forestry and Technology, 410004, Changsha, Hunan, People's Republic of China aut NATIONALLICENCE 700 1- Uematsu Chiyomi Botanical Gardens, Graduate School of Science, Osaka City University, 576-0004, Osaka, Japan aut NATIONALLICENCE 700 1- Katayama Hironori Food Resources Education and Research Center, Kobe University, 675-2103, Hyogo, Japan aut NATIONALLICENCE 773 0- Tree Genetics & Genomes Springer-Verlag 9/1(2013-02-01), 167-177 1614-2942 9:1<167 2013 9 11295 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer