Lim HI, Ahn JY, Seo HN, Chae SB, Lee JW. Broussonetia × hanjiana (Moraceae) microsatellite markers for species and ploidy determination developed using next-generation sequencing.
Mol Biol Rep 2022;
49:9089-9094. [PMID:
35804215 DOI:
10.1007/s11033-022-07659-9]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 05/28/2022] [Accepted: 05/30/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND
Broussonetia × hanjiana has been considered a hybrid owing to its morphology, which is intermediate between that of B. papyrifera (L.) L'Her. ex Vent. and B. kazinoki Siebold. A recent study demonstrated the hybrid origin of B. × hanjiana in Korea using molecular markers. In this study, we developed microsatellite markers for B. × hanjiana using next-generation sequencing and cross-species transferability analysis.
METHODS AND RESULTS
A total of 432 primers were designed from 205,819 contigs. Among them, 24 microsatellite markers showing polymorphisms were used to evaluate the population genetic characteristics. The observed heterozygosity (HO) and expected heterozygosity (HE) were 0.835 and 0.628, respectively. The cross-species transferability of these markers was evaluated in two closely related species of Broussonetia; all 24 markers showed cross-species amplification. Using flow cytometry, diploid and triploid individuals were identified in B. × hanjiana. In particular, the BR137 marker showed evidence of two parent species (B. papyripera and B. kazinoki), with a hybrid pattern observed in B. × hanjiana, demonstrating its utility for species identification and ploidy assessment.
CONCLUSIONS
The new B. × hanjiana microsatellite markers can be useful in genetic studies of closely related B. papyripera, B. kazinoki, and B. × hanjiana.
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