Origin of Meili（Pyrus L.）Based on Data from Multiple DNA Sequences

ACTA HORTICULTURAE SINICA ›› 2014, Vol. 41 ›› Issue (10): 2107-2114 .

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Origin of Meili（Pyrus L.）Based on Data from Multiple DNA Sequences

ZHENG Xiao-yan1,2 and TENG Yuan-wen2,*

1College of Ecology，Lishui University，Lishui，Zhejiang 323000，China；2Department of Horticulture，the State Agricultural Ministry Key Laboratory of Horticultural Plant Growth，Development and Quality Improvement，Zhejiang University，Hangzhou 310058，China

Received:2014-06-16 Online:2014-10-25 Published:2014-10-25

Abstract

Abstract: To elucidate the origin of Meli pear group，phylogenetic relationships among related Pyrus species were studied based on two noncoding regions of cpDNA（accD-psaI，trnL-F）and one low copy nuclear gene intron（LFY2int2-N）. As a result，all Meli cultivars but‘Xiaomeili’，as well as most of the P. pyrifolia cultivars，belong to one cpDNA haplotype；The phylogenetic tree based on LFY2int2-N showed that both Meili and P. pyrifolia are not monophyletic，and Meili is most closely related to P. pyrifolia；Meili is not inter-specific hybrids，P. calleryana probably has not been involved in the origin of Meili. Origin of Meili should be further studied by investigating more samples and nuclear markers.

Key words: Meili（Pyrus spp.）, DNA sequence, origin, phylogenetics

CLC Number:

S 661.2

ZHENG Xiao-Yan, TENG Yuan-Wen. Origin of Meili（Pyrus L.）Based on Data from Multiple DNA Sequences[J]. ACTA HORTICULTURAE SINICA, 2014, 41(10): 2107-2114 .

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Origin of Meili（Pyrus L.）Based on Data from Multiple DNA Sequences

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