Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species.

ABSTRACT:

Background

Cotton stem trichomes and seed fibers are each single celled structures formed by protrusions of epidermal cells, and were found sharing the overlapping molecular mechanism. Compared with fibers, cotton stem trichomes are more easily observed, but the molecular mechanisms underlying their development are still poorly understood.

Results

In this study, Gossypium hirsutum (Gh) and G. barbadense (Gb) were found to differ greatly in percentages of varieties/accessions with glabrous stems and in trichome density, length, and number per trichopore. Gh varieties normally had long singular and clustered trichomes, while Gb varieties had short clustered trichomes. Genetic mapping using five F₂ populations from crosses between glabrous varieties and those with di

SUBMITTER: Yuan R 

PROVIDER: S-EPMC7905624 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature