Differences of S-glycoprotein Content in the Styles among Pear Cultivars Differing in Self incompatible Strength

ACTA HORTICULTURAE SINICA ›› 2002, Vol. 29 ›› Issue (2): 168-167.

• 研究报告 • Previous Articles Next Articles

Differences of S-glycoprotein Content in the Styles among Pear Cultivars Differing in Self incompatible Strength

Zhang Shaoling¹, Yang Jigun², Li Xiugen², Shin Hiratsuka³, and Joseph Ngwela Wolukau¹

( ¹College of Horticulture, Nanjing Agriculture University , Nanj ing 210095, China; ²Zhengz hou Fruit Research I nstitute , CAAS, Zhengzhou 450009, China; ³Faculty of Bioresources , Mie University , Tsu 5148507, Japan)

Received:1900-01-01 Revised:1900-01-01 Online:2002-04-25 Published:2002-04-25

Abstract

Abstract: Stylar soluble proteins were extracted from the whole style of pear cultivars differing in self􀀁incom patibility ( SI) strength and were separated by isoelectricfocusing polyacrylamide gel electrphoresis ( IEF􀀁PAGE) and each S-glycoprotein content was quantif ied by an image analyzer. Total S-glycoprotein ( sum of two allelic􀀁linked S glycoproteins) content differed among cultivars. The cult ivars which were strong SI, weak SI and sel􀀁compatibility contained 􀀂1. 3 ng, 0. 7 - 0. 9 ng, and 0. 7 ng of S􀀁glycoprotein per 􀀁g of stylar soluble protein, respectively. S-allele linked glycoprotein content differed greatly in various S-genotypes. Furthermore, the S-glycoprotein content was even different in cultivars with the same S genotype.

Key words: Pear ( Pyrus ), Self􀀁, incompatibility, S allele, S glycoproteins

CLC Number:

S 661. 2

Zhang Shaoling;Yang Jigun;Li Xiugen;Shin Hiratsuka;and Joseph Ngwela Wolukau. Differences of S-glycoprotein Content in the Styles among Pear Cultivars Differing in Self incompatible Strength[J]. ACTA HORTICULTURAE SINICA, 2002, 29(2): 168-167.

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Differences of S-glycoprotein Content in the Styles among Pear Cultivars Differing in Self incompatible Strength

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