Molecular Mechanism ofβ-Carotene Accumulation in Orange-Fleshed Muskmelon
Zhao Junlin
Yu Xiyan
Wang Xiufeng
Abstract：The HPLC method was used to determine the contents ofβ-carotene and lutein at six devel-opmental stages in orange-fleshed muskmelon Homoka with white-fleshed muskmelon M01 -3 as control. And the bioinformatics and expression analyses of related genes were made.The results showed that the con-tent ofβ-carotene in orange-fleshed muskmelon increased significantly with the development of fruits and reached the accumulation peak when close to maturity,but declined somewhat in mature fruit.The expression level of genes related to biosynthesis ofβ-carotene,PSY2,PDS,ZDS,LCY-b ,were all up-regulated in two muskmelon fruits.But the expression quantity of PDS and LCY-b in orange -fleshed muskmelon was higher than that of white-flashed muskmelon.The expression level of lyase gene ofβ-carotene,CCD1 ,de-scended in orange-fleshed muskmelon,while ascended in white muskmelon.Compared with white -flashed muskmelon,the high expression level of PDS and LCY-b and down-regulated expression of CCD1 possibly determined the high accumulation ofβ-carotene in orange-fleshed muskmelon fruits.
Keywords：MuskmelonFruitβ-caroteneAccumulation
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 7-11,30 )