Next Article in Journal
The BRCA1 c.4096+3A>G Variant Displays Classical Characteristics of Pathogenic BRCA1 Mutations in Hereditary Breast and Ovarian Cancers, But Still Allows Homozygous Viability
Previous Article in Journal
A Mechanogenetic Model of Exercise-Induced Pulmonary Haemorrhage in the Thoroughbred Horse
Open AccessArticle

Sow Thistle Chloroplast Genomes: Insights into the Plastome Evolution and Relationship of Two Weedy Species, Sonchus asper and Sonchus oleraceus (Asteraceae)

1
Department of Biological Sciences, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Korea
2
Highland Agriculture Research Institute, National Institute of Agricultural Sciences, Rural Development Administration (RDA), Gangwon-do 25342, Korea
3
Department of Plant Biology and Ecology, Universidad de Sevilla, 41004 Seville, Spain
*
Author to whom correspondence should be addressed.
Genes 2019, 10(11), 881; https://doi.org/10.3390/genes10110881
Received: 20 September 2019 / Revised: 31 October 2019 / Accepted: 1 November 2019 / Published: 1 November 2019
(This article belongs to the Section Plant Genetics and Genomics)
Prickly sow thistle, Sonchus asper (L.) Hill, and common sow thistle, Sonchus oleraceus L., are noxious weeds. Probably originating from the Mediterranean region, they have become widespread species. They share similar morphology and are closely related. However, they differ in their chromosome numbers and the precise relationship between them remains uncertain. Understanding their chloroplast genome structure and evolution is an important initial step toward determining their phylogenetic relationships and analyzing accelerating plant invasion processes on a global scale. We assembled four accessions of chloroplast genomes (two S. asper and two S. oleraceus) by the next generation sequencing approach and conducted comparative genomic analyses. All the chloroplast genomes were highly conserved. Their sizes ranged from 151,808 to 151,849 bp, containing 130 genes including 87 coding genes, 6 rRNA genes, and 37 tRNA genes. Phylogenetic analysis based on the whole chloroplast genome sequences showed that S. asper shares a recent common ancestor with S. oleraceus and suggested its likely involvement in a possible amphidiploid origin of S. oleraceus. In total, 79 simple sequence repeats and highly variable regions were identified as the potential chloroplast markers to determine genetic variation and colonization patterns of Sonchus species.
Keywords: Sonchus asper; Sonchus oleraceus; chloroplast genome evolution; comparative genomic analyses; hybridization; invasive species Sonchus asper; Sonchus oleraceus; chloroplast genome evolution; comparative genomic analyses; hybridization; invasive species
MDPI and ACS Style

Cho, M.-S.; Kim, J.H.; Kim, C.-S.; Mejías, J.A.; Kim, S.-C. Sow Thistle Chloroplast Genomes: Insights into the Plastome Evolution and Relationship of Two Weedy Species, Sonchus asper and Sonchus oleraceus (Asteraceae). Genes 2019, 10, 881.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop