Genome wide Association Analysis

Plant β-galactosidases (BGALs) are the important glycosidase that hydrolyses non-reductive terminaβ-D-galactosidase residues from glycochains, glycolipids and glycoproteins. In order to reveal regulation mechanism of in cotton development, whole genome analysis of  BGAL  gene family were carried out this study, which laid a foundation for further understanding function  genes pollen. A total 153  respectively identified  Gossypium hirsutum, G.barbadense, G.arboreum ,  G.raimondii . Phylogenetic tree showed the  divided into eight subgroups, with same number exons genetic structure subgroup. The co-evolutionary there multiple gene pairs between  G.hirsutum  and diploid cotton. transcriptomic data some genes in   were specifically expressed different tissues. For example,  GhBGAL6  and  GhBGAL32 , highly all tissues;  GhBGAL33 GhBGAL7 GhBGAL18 GhBGAL43  stamens (anther filament) petals. Further qRT-PCR results (such as  GhBGAL17 ) stamens, which may have certain regulatory effect on development stamens. This study explored evolution genomes cotton, can provide theoretical basis subsequent research on