Characterization of a Wheat- wheatgrass Translocation Line by FISH

Abstract

Abstract: The genomic DNA of wheatgrass (Agropyron intermedium (Host) P.B. = Elytrigia intermedia (Host) Nevski = Thinopyrum intermedium (Host) Barkworth and Dewey) was labelled with biotin-16-dUTP as a probe, and genomic DNA of common wheat ( Triticum aestivum L. ) "Chinese Spring" was used for blocking. Wheat-wheatgrass line 33 was examined by fluorescence in situ hybridization (FISH) technique. The terminal regions of a pair of chromosomes showed green fluorescent signals. It has been concluded that chromosome segrnents containing alien genes of wheatgrass are located at the terminal regions of wheat chromosomes in wheat-wheatgrass line 33, and the translocated segments were small. Wheat-wheatgrass line 33 has been proved to be a translocation line with chromosome segments of wheatgrass translocated to the terminal regions of wheat chromoSomes.

Key words: Wheat, Wheatgrass, Translocation line, Fluorescence in situ hybridization

HAN Fang-Pu, HE Meng-Yuan, BU Xiu-Ling,HUANG Bai-Qu,HAO Shui,MA You-Zhi and XIN Zhi-Yong. Characterization of a Wheat- wheatgrass Translocation Line by FISH[J]. J Integr Plant Biol., 1998, 40(6): -.

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Characterization of a Wheat- wheatgrass Translocation Line by FISH

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