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Construction of a high-density genetic map of tree peony (Paeonia suffruticosa Andr. Moutan) using restriction site associated DNA sequencing (RADseq) approach

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Abstract

High-density genetic maps play a vital role in dissecting genetic components of biologically or agronomically important traits and molecular marker-assisted selection breeding, especially for a species with limited genomic information. Tree Peony (Paeonia suffruticosa Andr. Moutan DC.) is a traditional flowering plant in China, with important ornamental value, which have been spread around the world. However, less genetic and genomic information is available for the tree peony molecular studies. Here, we performed restriction site-associated DNA sequencing (RADseq) of an F1 population, derived from a traditional variety “Qing Long Wo Mo Chi (QL)” and a variety “Mo Zi Lian (MZL)”. High-density genetic maps were developed using RADseq markers for female (1471 markers) and male (793 markers) parents. They covered 965.69 and 870.21 cM, with the average marker intervals of 0.66 and 1.10 cM along the seven and five linkage groups (LGs), respectively. Furthermore, the identified markers were assigned to 1671 bins, representing the unique genetic positions in LGs, and inter-marker distances smaller than 5 cM covered 97.93% of genetic maps. This study suggests that rapid de novo construction of genetic maps in peony could be conducted through RADseq approach, which provides an important tool for further linkage mapping and genomic structure analysis, and enable development of molecular markers for molecular breeding in tree peony.

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Abbreviations

RADseq:

restriction site-associated DNA sequencing

MZL:

Mo Zi Lian

QL:

Qing Long Wo Mo Chi

SSR:

simple sequence repeat

AFLP:

amplified fragment length polymorphism

RAPD:

random amplified polymorphic DNA

EST:

expressed sequence tag

SNP:

single nucleotide polymorphism

NGS:

next-generation sequencing

GBS:

genotyping-by-sequencing

ddRADseq:

double digest RADseq

SLAFseq:

specific locus amplified fragment sequencing

Gb:

gigabases

LG:

linkage group

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Acknowledgments

We are grateful to all participants of the Agriculture Department at BGI.

Data archiving statement

The sequencing data of 122 samples, including 120 F1 progenies and two parental lines, from this study is currently being submitted to NCBI Sequence Read Archive (https://www.ncbi.nlm.nih.gov/sra) under the BioProject accession PRJNA529307 with Run accession numbers from SRR8936609 to SRR8936730.

Funding

The work was supported by Science, Technology and Innovation Commission of Shenzhen Municipality under grant no. JCYJ20160331150844452 and no. JCYJ20150831201123287 and Luoyang Municipal Government of China. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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Authors

Contributions

JH and GZ conceived and designed the project. SZL, ZW, EW, and JH collected the plant materials and performed the experiments. SML, KY, YL, XN, XJ, GH, JW, and SC analyzed the data. SML, KY, SZL, JH, and GZ wrote the paper. All authors read and consented to the final version of the manuscript.

Corresponding authors

Correspondence to Gengyun Zhang or Jiangtao Huang.

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Conflict of interest

The authors declare that they have no competing interests.

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Communicated by W.-W. Guo

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Li, S., Lv, S., Yu, K. et al. Construction of a high-density genetic map of tree peony (Paeonia suffruticosa Andr. Moutan) using restriction site associated DNA sequencing (RADseq) approach. Tree Genetics & Genomes 15, 63 (2019). https://doi.org/10.1007/s11295-019-1367-0

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  • DOI: https://doi.org/10.1007/s11295-019-1367-0

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