title: Expression of genes controlling unsaturated fatty acids biosynthesis and oil deposition in developing seeds of Sacha inchi (Plukenetia volubilis L.).
abstract: Sacha inchi (Plukenetia volubilis L., Euphorbiaceae) seed oil is rich in α-linolenic acid, a kind of n-3 fatty acids with many health benefits. To discover the mechanism underlying α-linolenic acid accumulation in sacha inchi seeds, preliminary research on sacha inchi seed development was carried out from one week after fertilization until maturity, focusing on phenology, oil content, and lipid profiles. The results suggested that the development of sacha inchi seeds from pollination to mature seed could be divided into three periods. In addition, investigations on the effect of temperature on sacha inchi seeds showed that total oil content decreased in the cool season, while unsaturated fatty acid and linolenic acid concentrations increased. In parallel, expression profiles of 17 unsaturated fatty acid related genes were characterized during seed development and the relationships between gene expression and lipid/unsaturated fatty acid accumulation were discussed.
authors.affiliation: Key Laboratory of Tropical Plant Resource and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 88 Xuefu Road, Kunming, 650223, China.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Wang
authors.forename: Aizhong
authors.initials: A
authors.lastname: Liu
mesh_terms: D019665:Euphorbiaceae / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism*; D005231:Fatty Acids, Unsaturated / Q000096:biosynthesis* / Q000235:genetics*; D018507:Gene Expression Regulation, Developmental; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D005810:Multigene Family; D010938:Plant Oils / Q000378:metabolism*; D012621:Seasons; D012639:Seeds / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism*; D013696:Temperature; D059467:Transcriptome; D017962:alpha-Linolenic Acid / Q000096:biosynthesis / Q000235:genetics
chemical_list: D005231:Fatty Acids, Unsaturated; D010938:Plant Oils; D017962:alpha-Linolenic Acid