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Development of novel polymorphic microsatellite markers for Picea brachytyla
Shuai-Peng Si1, Chun-Jing Wang2, Ji-Zhong Wan3
1College of Agriculture and Animal Husbandry, Qinghai University, 810016, Xining, China.
Molecular Biology Reports
|May 10, 2022
Summary
New microsatellite markers were developed for Picea brachytyla, a vulnerable Chinese tree. These genetic markers will aid in the conservation and research of this rare species.
Area of Science:
- Genetics
- Botany
- Conservation Biology
Background:
- Picea brachytyla, a vulnerable Chinese tree species, faces threats from past exploitation.
- Limited genetic markers exist for P. brachytyla due to low population numbers and research resources.
- Microsatellites (SSRs) are valuable tools for genetic diversity and conservation studies.
Purpose of the Study:
- To develop novel polymorphic microsatellite (SSR) markers for Picea brachytyla.
- To provide essential genetic tools for the conservation and research of this vulnerable species.
Main Methods:
- Genomic DNA of Picea brachytyla was sequenced using the DNBSEQ platform.
- Unigenes were assembled and dereduplicated.
- 100 primer pairs were screened, yielding 10 useful microsatellite loci.
Main Results:
- Ten polymorphic microsatellite loci were successfully isolated from Picea brachytyla.
- Observed and expected heterozygosity values indicated significant genetic variation.
- Polymorphism-information content (PIC) values were high, demonstrating marker utility.
- Most loci were not in Hardy-Weinberg equilibrium, and linkage disequilibrium was high.
Conclusions:
- Developed polymorphic microsatellite markers are highly effective for Picea brachytyla.
- These markers will facilitate future genetic research and conservation efforts for this rare tree.
