Genome survey of Zanthoxylum bungeanum and development of genomic-SSR markers in congeneric species.
Genetic diversity
Genome size
Genome survey
SSR markers
Zanthoxylum bungeanum
Journal
Bioscience reports
ISSN: 1573-4935
Titre abrégé: Biosci Rep
Pays: England
ID NLM: 8102797
Informations de publication
Date de publication:
26 06 2020
26 06 2020
Historique:
received:
27
04
2020
revised:
11
06
2020
accepted:
18
06
2020
pubmed:
20
6
2020
medline:
23
3
2021
entrez:
20
6
2020
Statut:
ppublish
Résumé
Zanthoxylum bungeanum, a spice and medicinal plant, is cultivated in many parts of China and some countries in Southeast Asia; however, data on its genome are lacking. In the present study, we performed a whole-genome survey and developed novel genomic-SSR markers of Z. bungeanum. Clean data (∼197.16 Gb) were obtained and assembled into 11185221 scaffolds with an N50 of 183 bp. K-mer analysis revealed that Z. bungeanum has an estimated genome size of 3971.92 Mb, and the GC content, heterozygous rate, and repeat sequence rate are 37.21%, 1.73%, and 86.04%, respectively. These results indicate that the genome of Z. bungeanum is complex. Furthermore, 27153 simple sequence repeat (SSR) loci were identified from 57288 scaffolds with a minimum length > 1 kb. Mononucleotide repeats (19706) were the most abundant type, followed by dinucleotide repeats (5154). The most common motifs were A/T, followed by AT/AT; these SSRs accounted for 71.42% and 11.84% of all repeats, respectively. A total of 21243 non-repeating primer pairs were designed, and 100 were randomly selected and validated by PCR analysis using DNA from 10 Z. bungeanum individuals and 5 Zanthoxylum armatum individuals. Finally, 36 polymorphic SSR markers were developed with polymorphism information content (PIC) values ranging from 0.16 to 0.75. Cluster analysis revealed that Z. bungeanum and Z. armatum could be divided into two major clusters, suggesting that these newly developed SSR markers are useful for genetic diversity and germplasm resource identification in Z. bungeanum and Z. armatum.
Identifiants
pubmed: 32558907
pii: 225368
doi: 10.1042/BSR20201101
pmc: PMC7322109
pii:
doi:
Substances chimiques
Genetic Markers
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2020 The Author(s).
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