species_code	scientific_name	polymer_class	reference_gene	source_gene_ids	family	pathway_step	evidence_level	claim	evidence_boundary	source_title	doi	pmid	accession	source_url	material_context
EU	Eucommia ulmoides	trans-1,4-polyisoprene	EuIPI	AB041629.2	IDI	prenyl_donor	A_direct_genetic_experiment	EuIPI过表达与反式聚异戊二烯积累增加相关。	Trans-polyisoprene comparator only; excluded from natural cis-rubber 候选 conclusions.	Overexpression of EuIPI increases trans-polyisoprene accumulation	10.1186/1472-6750-12-78	23110380	AB041629.2	https://doi.org/10.1186/1472-6750-12-78	Transgenic roots