title: Metabolic Profiling in Chinese Cabbage (Brassica rapa L. subsp. pekinensis) Cultivars Reveals that Glucosinolate Content Is Correlated with Carotenoid Content.
abstract: A total of 38 bioactive compounds, including glucosinolates, carotenoids, tocopherols, sterols, and policosanols, were characterized from nine varieties of Chinese cabbage (Brassica rapa L. subsp. pekinensis) to determine their phytochemical diversity and analyze their abundance relationships. The metabolite profiles were evaluated with principal component analysis (PCA), Pearson correlation analysis, and hierarchical clustering analysis (HCA). PCA and HCA identified two distinct varieties of Chinese cabbage (Cheonsangcheonha and Waldongcheonha) with higher levels of glucosinolates and carotenoids. Pairwise comparisons of the 38 metabolites were calculated using Pearson correlation coefficients. The HCA, which used the correlation coefficients, clustered metabolites that are derived from closely related biochemical pathways. Significant correlations were discovered between chlorophyll and carotenoids. Additionally, aliphatic glucosinolate and carotenoid levels were positively correlated. The Cheonsangcheonha and Waldongcheonha varieties appear to be good candidates for breeding because they have high glucosinolate and carotenoid levels.
authors.affiliation: Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University , Incheon 22012, Republic of Korea.
authors.forename: Seung-A
authors.initials: SA
authors.lastname: Baek
authors.affiliation: Biotechnology Institute, Nongwoo Bio Company, Limited , Yeoju, Gyeonggi 12655, Republic of Korea.
authors.forename: Young-Ho
authors.initials: YH
authors.lastname: Jung
authors.affiliation: National Academy of Agricultural Science, Rural Development Administration , Jeonju 54874, Republic of Korea.
authors.forename: Sun-Hyung
authors.initials: SH
authors.lastname: Lim
authors.affiliation: Department of Crop Science, Chungnam National University , 99 Daehak-Ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
authors.forename: Sang Un
authors.initials: SU
authors.lastname: Park
authors.affiliation: Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University , Incheon 22012, Republic of Korea.
authors.forename: Jae Kwang
authors.initials: JK
authors.lastname: Kim
mesh_terms: D029741:Brassica rapa / Q000737:chemistry* / Q000145:classification / Q000235:genetics / Q000378:metabolism; D001947:Breeding; D002338:Carotenoids / Q000032:analysis* / Q000378:metabolism; D005961:Glucosinolates / Q000032:analysis* / Q000378:metabolism; D055432:Metabolomics
chemical_list: D005961:Glucosinolates; D002338:Carotenoids
keywords: Chinese cabbage; carotenoids; glucosinolates; phytosterol; policosanol