[Gene mapping of an ultra-dwarf mutant in upland cotton].

A ultra-dwarf mutant was newly found in upland cotton (Gossypium hirsutum L.). This mutant was controlled by single recessive gene du.

[Analysis on linkage inheritance of sub-red plant mutant from upland cotton].

Analysis of linkage inheritance of sub-red plant, a natural mutant from upland cotton, was conducted by two-point test using parents Gossypium barbadense Hai7124 and G. hirsutum B026 both with petal spots and green leaves, and G. hirsutum E083 with normal white flowers and, sub-red plants.

[The inheritance of an ultra-dwarf plant mutant from upland cotton].

The inheritance of an ultra-dwarf plant mutant from upland cotton (Gossypium hirsutum L.) was studied, which showed that the mutant was controlled by single recessive quality gene. This gene was denominated as du tentatively.