Gene split models for 39 plant reference genomes based on the latest Gramene release 50 (Gramene50Ensembl84) 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.

subtype contiguous_gene_split

species_id      total

Aegilops_tauschii	463
Amborella_trichopoda	654
Arabidopsis_lyrata_subsp._lyrata	102
Arabidopsis_thaliana	13
Brachypodium_distachyon	105
Brassica_oleracea_var._oleracea	624
Brassica_rapa_subsp._pekinensis	94
Chlamydomonas_reinhardtii	62
Cyanidioschyzon_merolae_strain_10D	4
Glycine_max	257
Hordeum_vulgare_subsp._vulgare	91
Leersia_perrieri	157
Medicago_truncatula	261
Musa_acuminata_subsp._malaccensis	889
Oryza_barthii	208
Oryza_brachyantha	229
Oryza_glaberrima	432
Oryza_glumipatula	242
Oryza_longistaminata	213
Oryza_meridionalis	157
Oryza_nivara	185
Oryza_punctata	160
Oryza_rufipogon	179
Oryza_sativa_Indica_Group	558
Oryza_sativa_Japonica_Group	558
Ostreococcus_lucimarinus_CCE9901	14
Physcomitrella_patens	149
Populus_trichocarpa	1100
Prunus_persica	307
Selaginella_moellendorffii	121
Setaria_italica	230
Solanum_lycopersicum	816
Solanum_tuberosum	458
Sorghum_bicolor	706
Theobroma_cacao	84
Triticum_aestivum	979
Triticum_urartu	357
Vitis_vinifera	465
Zea_mays	603