glandless
2.Biological resistance to bollworms of transgenic glandless cotton C020 and C022 with Bt+CpTI, and W039 with Bt were studies.
3.bickii possesses completely expressed in the F_1. This consequesce suggested that delayed gland morphogenesis gene (Gl ̄(bic)) of G_1 genome group is dominant to glandless genes (gl_2 and gl_3) of (AD)_1 genome group. However, crossing G. bickii with normally glanded upland cotton and Asiatic cotton (G. arboreum L.)
4.The special character of glandless seed and glanded plant is the target character which can comprehensively utilize new varieties of cotton. Gossypium bickii from Australia had a propority which gossypol is not showed until the formation of the cotyledone.
5.hirsutum. In addition, the relationship between gossypol accumulation and anatomical base of glandless seeds and glanded plant trait of the Australian wild species of Gossypium, as well as the mechanism of its genetic regulation were discussed in this paper.

