Comparative transcriptome analysis between inbred and hybrids reveals molecular insights into yield heterosis of upland cotton.

ABSTRACT:

Background

Utilization of heterosis has greatly improved the productivity of many crops worldwide. Understanding the potential molecular mechanism about how hybridization produces superior yield in upland cotton is critical for efficient breeding programs.

Results

In this study, high, medium, and low hybrids varying in the level of yield heterosis were screened based on field experimentation of different years and locations. Phenotypically, high hybrid produced a mean of 14% more seed cotton yield than its better parent. Whole-genome RNA sequencing of these hybrids and their four inbred parents was performed using different tissues of the squaring stage. Comparative transcriptomic differences in each hybrid parent triad revealed a higher percentage of differentially expresse

SUBMITTER: Shahzad K 

PROVIDER: S-EPMC7251818 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature