Assembly and Comparative Analysis of Complete Mitogenome of Silybum marianum (L.) Gaertner

서지정보

· 발행기관 : 한국육종학회
· 수록지 정보 : 한국육종학회지 / 54권 / 4호 / 294 ~ 304페이지
· 저자명 : 이정우, 예도몬, 정화진, 이태호, 김정구, 박규황, 이근표, 안광훈, 심지형, 진중현, 홍수영

초록

Silybum marianum (L.) Gaertner. (milk thistle), is a member of the Asteraceae family. Silymarin has hepatoprotective effects, accumulatesat high levels in the external cover of milk thistle seeds, and is composed of flavonolignan isomers. In the present study, we assembled andannotated the mitogenome of Silybum marianum. This mitogenome was found to have a length of 407,123 base pairs and an overall basecomposition: A, 27.41%; T, 27.33%; G, 22.72%; and C, 22.54%. Seventy-four unique genes were identified in the Silybum marianum mitogenomebased on annotation results, including 27 protein-coding genes, 44 tRNA genes, and 3 rRNA genes. Common protein-coding genes of 11 Asteraceaefamily references and four outgroup (Campanulaceae and Solanaceae) mitogenomes were used to construct a phylogenetic tree. The phylogenetictree of the Silybum marianum mitogenome revealed close relationships with three reference mitogenomes (Arctium tomentosum, Arctium lappa,and Saussurea costus), and the flower morphology of Silybum marianum was similar to that of the three reference mitogenomes. This reportdescribes unique features of the Silybum marianum mitogenome relative to the three related reference mitogenomes. In addition, we couldenvisage a specific analysis of the phylogenetic relationship of Silybum mariaum using additional Asteraceae family mitogenomes.

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