Gene split models for 44 plant reference genomes based on the latest Gramene release 51 (Gramene51Ensembl85) 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      Total

Aegilops_tauschii	496
Amborella_trichopoda	711
Arabidopsis_lyrata_subsp._lyrata	109
Arabidopsis_thaliana	17
Beta_vulgaris_subsp._vulgaris	80
Brachypodium_distachyon	123
Brassica_napus	1640
Brassica_oleracea_var._oleracea	692
Brassica_rapa_subsp._pekinensis	100
Chlamydomonas_reinhardtii	66
Chondrus_crispus	56
Cyanidioschyzon_merolae_strain_10D	4
Galdieria_sulphuraria	20
Glycine_max	247
Hordeum_vulgare_subsp._vulgare	87
Leersia_perrieri	149
Medicago_truncatula	270
Musa_acuminata_subsp._malaccensis	875
Oryza_barthii	210
Oryza_brachyantha	236
Oryza_glaberrima	428
Oryza_glumipatula	236
Oryza_longistaminata	219
Oryza_meridionalis	148
Oryza_nivara	178
Oryza_punctata	157
Oryza_rufipogon	195
Oryza_sativa_Indica_Group	578
Oryza_sativa_Japonica_Group	555
Ostreococcus_lucimarinus_CCE9901	12
Physcomitrella_patens_subsp._patens	149
Populus_trichocarpa	1067
Prunus_persica	314
Selaginella_moellendorffii	130
Setaria_italica	238
Solanum_lycopersicum	794
Solanum_tuberosum	438
Sorghum_bicolor	692
Theobroma_cacao	77
Trifolium_pratense	754
Triticum_aestivum	413
Triticum_urartu	366
Vitis_vinifera	480
Zea_mays	274