Conversion of AFLP markers associated with FHB resistance in wheat into STS markers with an extension-AFLP method.


:Amplified fragment length polymorphism (AFLP) has proven a powerful tool for tagging genes or quantitative trait loci (QTLs) of interest in plants. However, conversion of AFLP markers into sequence-tagged site (STS) markers is technically challenging in wheat owing to the complicated nature of its genome. In this study, we developed an "extension-AFLP" method to convert AFLP markers associated with Fusarium head blight (FHB) resistance into STS markers. When an AFLP marker of interest was detected with an EcoRI+3-MseI+4-selective primer combination, the PCR product was used as a template for an additional selective amplification with four primer pairs, in which one additional selective base (either A, C, G, or T) was added to the 3' end of one of the two primers. The extended primer pair that produced the targeted band was further extended by adding each of the four selective nucleotide bases for the next round of selective amplification. Extension selective amplification was performed until the target bands became clear enough for subsequent cloning and sequencing. By using the extension-AFLP method, we successfully converted two AFLP markers located on chromosome 3BS and associated with FHB resistance into STS markers. Our results indicated that the extension-AFLP method is an efficient approach for converting AFLP markers into STS markers in wheat. The developed STS markers might be used for marker-assisted selection (MAS) for FHB resistance in wheat breeding programs.






Xu DH,Ban T




Has Abstract


2004-08-01 00:00:00
















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    pub_type: 杂志文章


    authors: Pedersen C,Langridge P

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    authors: Zou B,Hong X,Ding Y,Wang X,Liu H,Hua J

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    pub_type: 杂志文章


    authors: Li M,Guo Q,Hou C,Miao X,Xu A,Guo X,Huang Y

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    authors: Harris MJ,Juriloff DM

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    pub_type: 杂志文章


    authors: Ren J,Yu Y,Gao F,Zeng L,Lu X,Wu X,Yan W,Ren G

    更新日期:2013-07-01 00:00:00

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    更新日期:2016-03-01 00:00:00

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    authors: O'Flynn FM,Friars GW,Bailey JK,Terhune JM

    更新日期:1992-04-01 00:00:00

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    authors: Ubayasena L,Bett K,Tar'an B,Warkentin T

    更新日期:2011-04-01 00:00:00

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    authors: Matus I,Corey A,Filichkin T,Hayes PM,Vales MI,Kling J,Riera-Lizarazu O,Sato K,Powell W,Waugh R

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    pub_type: 杂志文章


    authors: Techen N,Parveen I,Khan IA

    更新日期:2017-03-01 00:00:00

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    pub_type: 杂志文章,评审


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    pub_type: 杂志文章


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    pub_type: 杂志文章


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    pub_type: 杂志文章


    authors: Powers TO,Harris TS,Higgins RS,Mullin PG,Powers KS

    更新日期:2020-06-11 00:00:00

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    pub_type: 杂志文章


    authors: Sing KW,Dong H,Wang WZ,Wilson JJ

    更新日期:2016-09-01 00:00:00

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    pub_type: 杂志文章


    authors: Reddy KD,Abraham EG,Nagaraju J

    更新日期:1999-12-01 00:00:00

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    pub_type: 杂志文章


    authors: Asakura N,Nakamura C,Ohtsuka I

    更新日期:1997-04-01 00:00:00