Analysis of Isozymes in Superiority Combination of Sweetpotato Distant Hybridization

doi:10.7668/hbnxb.2009.S2.039

Abstract

Abstract: This paper explored the best condition of the POD, EST, AMY, and analysised the wild sweetpotato Y-6, Ji21-2 and its five hybrid progenies including Ji98, Ji99, Ji79, Ji71, Ji52, its result showed that the reliability of the isozymes analysis in sweetpotato was validated from two aspects of existing zymogram types of the heterosis characteristics in the filial generation, such as the hybrid type, paternal or maternal type, combined with the performance of corresponding euhivar in the production. The cross combination wild sweetpotato Y-6 Ji21-2 belongs to the strong heterosis one, and the isozyme technique can be used to screen the strong combination and the early generation of the filial generation, and speeding up the breeding process.

Key words: Peroxidase, Esterase, Amylase, Distant hybridization, Superiority combination

CLC Number:

S531

MA Zhi-min, LIU Lan-fu, ZHANG Song-shu. Analysis of Isozymes in Superiority Combination of Sweetpotato Distant Hybridization[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S2.039.

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http://www.hbnxb.net/EN/Y2009/V24/IS2/176

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