Application of SSR Markers to Heterotic Grouping of Popcorn Inbred Lines

doi:10.3321/j.issn:1000-7091.2004.03.004

Abstract

Abstract: SSRs were used to study the diversity of 56 popcorn inbred lines and their classification of heterot-is groups，among which 26 lines were selected from 8 Chinese germplasms,26 lines from 7 foreign hybrids and 4 were introduced from foreign country. The result showed that there were high level of SSR polymorphism a-mong 56 popcorn lines. According to SSR data with Words method, 56 inbred lines were classified into 6 het-erotic groups with 3 subgroups in group I，among which 26 lines derived from Chinese germplasms were mainly divided into I，V and VI groups，fl，^' and N groups were lines from foreign hybrids. This cluster result cor-responded to previous crosses making and pedigree aNa⁺lysis. Consequently，SSR could be used to study the germplasm of popcorn inbred lines.

Key words: Popcorn, SSR marker, Genetic distance, Cluster aNa⁺lysis, Heterotic groups

CLC Number:

S513

LI Yu-ling, WANG Yan-zhao, CHEN Shao-jiang, TANG Ji-hua. Application of SSR Markers to Heterotic Grouping of Popcorn Inbred Lines[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(3): 13-17. doi: 10.3321/j.issn:1000-7091.2004.03.004.

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