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Construction of a genetic linkage map of Lentinula edodes based on SSR, SRAP and TRAP markers.

ABSTRACT: Genetic mapping is a basic tool for eukaryotic genomic research. It allows the localization of genes or quantitative trait loci (QTLs) and map-based cloning. In this study, we constructed a linkage map based on DNA samples from a commercial strain L808, including two parental monokaryons and 93 single spore isolates considered with segregating to 1:1:1:1 at four mating types (A1B1, A1B2, A2B1 and A2B2). Using Simple Sequence Repeats (SSR), Sequence Related Amplified Polymorphism (SRAP), Target Region Amplified Polymorphism (TRAP) molecular markers, 182 molecular markers and two mating factors were located on 11 linkage groups (LGs). The total length of the map was 948.083 centimorgan (cM), with an average marker interval distance of 4.817 cM. Only two gaps spanning more than 20 cM was observed. The probability of 20 cM, 10 cM, 5 cM genetic distance cover one marker was 99.68%, 94.36%, 76.43% in our genetic linkage map, respectively. This is the first linkage map of Lentinula edodes using SSR markers, which provides essential information for quantitative trait analyses and improvement of genome assembly.

SUBMITTER: Dong H 

PROVIDER: S-EPMC6977451 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Construction of a genetic linkage map of <i>Lentinula edodes</i> based on SSR, SRAP and TRAP markers.

Dong Hui H   Shang Xiaodong X   Zhao Xiaoyan X   Yu Hailong H   Jiang Ning N   Zhang Meiyan M   Tan Qi Q   Zhou Changyan C   Zhang Lujun L  

Breeding science 20190919 4

Genetic mapping is a basic tool for eukaryotic genomic research. It allows the localization of genes or quantitative trait loci (QTLs) and map-based cloning. In this study, we constructed a linkage map based on DNA samples from a commercial strain L808, including two parental monokaryons and 93 single spore isolates considered with segregating to 1:1:1:1 at four mating types (A<sub>1</sub>B<sub>1</sub>, A<sub>1</sub>B<sub>2</sub>, A<sub>2</sub>B<sub>1</sub> and A<sub>2</sub>B<sub>2</sub>). Using  ...[more]

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