title: Anthocyanin accumulation enhanced inLc-transgenic cotton under light and increased resistance to bollworm.
abstract: Breeding of naturally colored cotton fiber has been hampered by the limited germplasm, an alternative way is to use transgenic approach to create more germplasm for breeding. Here, we report our effort to engineer anthocyanin production in cotton. The maizeLcgene, under the control of the constitutive 35S promoter, was introduced into cotton through genetic transformation. Our data showed that the expression of theLcgene alone is sufficient to trigger the accumulation of anthocyanin in a variety of cell types including fiber cells in cotton. However, the accumulation of colored anthocyanin in cotton fibers requires the participation of light signaling. These data indicate that it is feasible to engineer colored fibers through transgenic approach in cotton. Furthermore, we showed that theLc-transgenic cotton plants are resistant to cotton bollworm. These transgenic plants are, therefore, potentially useful for cotton breeding against cotton bollworm.
authors.affiliation: Institute of Cotton Research, Academy of ShanXi Agricultural Science, Yuncheng City, Shanxi Province 044000 China.
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Fan
authors.affiliation: Institute of Cotton Research, Academy of ShanXi Agricultural Science, Yuncheng City, Shanxi Province 044000 China.
authors.forename: Bohong
authors.initials: B
authors.lastname: Fan
authors.affiliation: Institute of Cotton Research, Academy of ShanXi Agricultural Science, Yuncheng City, Shanxi Province 044000 China.
authors.forename: Yuxiang
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Molecular and Developmental Biology and National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Datun Road, Beijing, 100101 China.
authors.forename: Weicai
authors.initials: W
authors.lastname: Yang
keywords: Anthocyanin; Cotton fiber; Gossypium hirsutum; Lc gene