Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At4g20050	Polygalacturonase required for degrading the pollen mother cell wall during microspore development.	Microspore separation in the quartet 3 mutants of Arabidopsis is impaired by a defect in a developmentally regulated polygalacturonase required for pollen mother cell wall degradation.; 2003; DOI: 10.1104/pp.103.028266; PMID: 14551328; https://pubmed.ncbi.nlm.nih.gov/14551328/