Gene split models for 33 plant reference genomes based on the latest Gramene release 54 (Gramene54Ensembl89) are given. The split gene models are commonly related to an annotation artifact where a single gene is annotated as two or more genes due to incomplete evidence, but could also result from legitimate evolutionary processes. The Compara Gene Tree method predicts a special class of within-species paralogs called contiguous gene split. 

A contiguous gene split is called when the two apparently paralogous genes lie on the same strand and in close proximity (<1MB) but have no (or little) overlapping sequence.

Here is brief statistics of contiguous gene split models for each species.


Taxon_label	Count	
Beta_vulgaris_subsp._vulgaris	57
Theobroma_cacao	67
Populus_trichocarpa	1065
Arabidopsis_thaliana	31
Prunus_persica	305
Glycine_max	262
Medicago_truncatula	262
Solanum_lycopersicum	819
Solanum_tuberosum	469
Oryza_rufipogon	173
Oryza_brachyantha	225
Oryza_nivara	188
Oryza_punctata	171
Oryza_glaberrima	392
Setaria_italica	240
Sorghum_bicolor	227
Zea_mays	243
Brachypodium_distachyon	114
Vitis_vinifera	485
Oryza_sativa_Indica_Group	538
Oryza_sativa_Japonica_Group	527
Oryza_glumipatula	245
Oryza_meridionalis	151
Brassica_rapa_subsp._pekinensis	100
Trifolium_pratense	464
Oryza_barthii	217
Leersia_perrieri	150
Arabidopsis_lyrata_subsp._lyrata	98
Brassica_oleracea_var._oleracea	671
Hordeum_vulgare_subsp._vulgare	236
Musa_acuminata_subsp._malaccensis	870
Cyanidioschyzon_merolae_strain_10D	4
Ostreococcus_lucimarinus_CCE9901	12