Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g48390	Required for meiotic chromosome segregation.	Zip4/Spo22 is required for class I CO formation but not for synapsis completion in Arabidopsis thaliana.; 2007; DOI: 10.1371/journal.pgen.0030083; PMID: 17530928; https://pubmed.ncbi.nlm.nih.gov/17530928/ | Homologous chromosome pairing is completed in crossover defective atzip4 mutant.; 2008; DOI: 10.1016/j.bbrc.2008.03.036; PMID: 18348867; https://pubmed.ncbi.nlm.nih.gov/18348867/
Rice	UniProt: A2WXU2	Required for crossover formation, complete synapsis of homologous chromosomes and bivalent formation during meiosis.	No verified direct reference in this release
Rice	Os01g0890900	Required for crossover formation, complete synapsis of homologous chromosomes and bivalent formation during meiosis.	ZIP4 in homologous chromosome synapsis and crossover formation in rice meiosis.; 2012; DOI: 10.1242/jcs.090993; PMID: 22393242; https://pubmed.ncbi.nlm.nih.gov/22393242/