Identification of S-genotypes of Twelve Pear Cultivars by Analysis of DNASequence

ACTA HORTICULTURAE SINICA ›› 2007, Vol. 34 ›› Issue (4): 853-858.

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Identification of S-genotypes of Twelve Pear Cultivars by Analysis of DNASequence

HENG Wei¹;ZHANG Shao-ling^1,*;ZHANG Yu-yan¹;WU Jun¹;LI Xiu-gen²

(¹College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; ² Zhengzhou Fruit Research Institute,Chinese Academy Agricultural Sciences, Zhengzhou 450009,China)

Received:1900-01-01 Revised:1900-01-01 Online:2007-08-25 Published:2007-08-25

Abstract

Abstract: Using PCR amplification method, S-genotypes of twelve Chinese pear cultivars were deter
mined. The S-genotypeswere S₄S₃₆ for Hongsucui, S₂₈S_d for Xinli 7, S₅S₂₉ for Jinshui 3, S₃S₁₆ for Bayuesu,
S₃S₂₉ for Jinshui 1, S₃S₂₂ for Longquansu, S₄S₁₆ for Xuehua, S₄S₁₆ for Xuefang, S₄S₃₄ for Yaqing, S₄S₃₄ for
Xinya, S₃S₂₉ forDeshengxiang, S₃₁S₃₃ for Fuyuanhuang. Based on the analysis of the S gene, Itwas confirmed
that S₁₆ and S₃₁ were the same S gene. The study results enriched the genotype information of pear cultivars in
China, p roviding the basis for app rop riate arrangement of pollination tree in pear orchards.

Key words: Pear, Pyrus, Self-incompatibility, Analysis of DNA sequence, S-genotype

HENG Wei;ZHANG Shao-ling;ZHANG Yu-yan;WU Jun;LI Xiu-gen. Identification of S-genotypes of Twelve Pear Cultivars by Analysis of DNASequence[J]. ACTA HORTICULTURAE SINICA, 2007, 34(4): 853-858.

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Identification of S-genotypes of Twelve Pear Cultivars by Analysis of DNASequence

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