2008Jiangsu nongye xuebaoRequires access

RAPD Analyses of Mitochondrial DNAs of CMS Pepper Line and Its Maintainer Line

Shubin Wang, Luo XiangDong, Liangfang Dai, Jinfeng Chen, Jinbing Liu, Pan BaoGui

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Abstract

The mitochondria and mtDNAs were extracted from chloresis pepper seedlings at 10-15 d of CMS pepper 21A and its maintainer 21B.The mitochondria of pepper stained by PTA under the transmission electron microscrope showed intact shape,ellipsoid and less impurity.Electrophoresis detected quite pure mitochondrial DNA with no degeneration and concentration of 20-50 ng/μl which could be used for RAPD analysis.100 random primers were used for analyzing the difference of mtDNA between CMS 21A and its maintainer 21B by means of RAPD technique.Among them 8 primers presented polymorphism.Furthermore,the specific RAPD marker CMSAG3430 related to CMS gene was found.

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What this paper is about

The mitochondria and mtDNAs were extracted from chloresis pepper seedlings at 10-15 d of CMS pepper 21A and its maintainer 21B.The mitochondria of pepper stained by PTA under the transmission electron microscrope showed intact shape,ellipsoid and less impurity.Electrophoresis detected quite pure mitochondrial DNA with no degeneration and concentration of 20-50 ng/μl which could be used for RAPD analysis.100 random primers were used for analyzing the difference of mtDNA between CMS 21A and its maintainer 21B by means of RAPD technique.Among them 8 primers presented polymorphism.Furthermore,the specific RAPD marker CMSAG3430 related to CMS gene was found.

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Available abstract

The mitochondria and mtDNAs were extracted from chloresis pepper seedlings at 10-15 d of CMS pepper 21A and its maintainer 21B.The mitochondria of pepper stained by PTA under the transmission electron microscrope showed intact shape,ellipsoid and less impurity.Electrophoresis detected quite pure mitochondrial DNA with no degeneration and concentration of 20-50 ng/μl which could be used for RAPD analysis.100 random primers were used for analyzing the difference of mtDNA between CMS 21A and its maintainer 21B by means of RAPD technique.Among them 8 primers presented polymorphism.Furthermore,the specific RAPD marker CMSAG3430 related to CMS gene was found.

Key concepts: RAPD, Software maintainer, Pepper, Mitochondrial DNA, Cytoplasmic male sterility, Biology, Gene, Mitochondrion

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