Photosynthetic characteristics of upland cotton (<i>Gossypium hirsutum</i>) recessive genic male sterile line YA-1 with virescent trait.

ABSTRACT: The upland cotton strain YA-1 can be used for hybrid seed production and recurrent selection. However, the effect of YA-1 virescent phenotype on photosynthetic traits remains unclear. This study demonstrated that the chlorophyll and carotenoid contents, light-saturation point, light-compensation point, and PSII reaction center activities are lower than those of green leaves of wide type. In contrast, light-energy utilization efficiencies, net photosynthetic rate, transpiration rate, stomatal conductance, concentrations of Rubisco and phosphoenolpyruvate carboxylase, photosynthetic performance indices, and energy distribution parameters of the yellowish leaves of YA-1 are higher than those of wild type green leaves. The lower expression of GhHemL, GhSGRL, and GhCAO gene

SUBMITTER: Yang N 

PROVIDER: S-EPMC12551370 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature