Gene split models for 114 plant reference genomes based on the latest Gramene release 69 (Gramene69Ensembl114) are given.

The split gene models are commonly related to annotation artifacts where either a single gene is annotated as two or more genes due to incomplete evidence or the corresponding orthologous genes are fused, but split genes 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.

system_name	split gene count
actinidia_chinensis	74
aegilops_tauschii	86
aegilops_umbellulata	5
amborella_trichopoda	273
ananas_comosus	37
arabidopsis_halleri	57
arabidopsis_lyrata	54
arabidopsis_thaliana	14
arabis_alpina	16
arachis_hypogaea	211
asparagus_officinalis	244
avena_sativa_ot3098	6
avena_sativa_sang	293
beta_vulgaris	28
brachypodium_distachyon	31
brassica_juncea	326
brassica_napus	685
brassica_oleracea	303
brassica_rapa_ro18	59
cajanus_cajan	200
camelina_sativa	349
cannabis_sativa_female	40
capsicum_annuum	325
chara_braunii	61
chenopodium_quinoa	201
chlamydomonas_reinhardtii	21
chondrus_crispus	21
citrullus_lanatus	94
citrus_clementina	247
coffea_canephora	164
corchorus_capsularis	28
corylus_avellana	249
corymbia_citriodora	129
cucumis_melo	84
cucumis_sativus	202
cynara_cardunculus	91
daucus_carota	112
digitaria_exilis	571
dioscorea_rotundata	293
echinochloa_crusgalli	141
eragrostis_curvula	256
eragrostis_tef	294
eucalyptus_grandis	368
eutrema_salsugineum	108
ficus_carica	287
fraxinus_excelsior	207
galdieria_sulphuraria	7
glycine_max	97
glycine_soja	60
gossypium_raimondii	168
helianthus_annuus	698
hordeum_vulgare	92
ipomoea_triloba	151
juglans_regia	81
kalanchoe_fedtschenkoi	74
lathyrus_sativus	142
leersia_perrieri	42
lolium_perenne	144
lupinus_angustifolius	59
manihot_esculenta	24
marchantia_polymorpha	6
medicago_truncatula	557
musa_acuminata	112
nicotiana_attenuata	79
nymphaea_colorata	151
olea_europaea	413
oryza_barthii	55
oryza_brachyantha	92
oryza_glaberrima	147
oryza_glumipatula	76
oryza_indica	190
oryza_longistaminata	81
oryza_meridionalis	45
oryza_nivara	49
oryza_punctata	40
oryza_rufipogon	46
oryza_sativa	175
ostreococcus_lucimarinus	5
panicum_hallii	60
papaver_somniferum	97
phaseolus_vulgaris	282
physcomitrium_patens	20
pistacia_vera	59
pisum_sativum	162
populus_trichocarpa	66
prunus_dulcis	116
prunus_persica	35
quercus_suber	475
rosa_chinensis	581
saccharum_spontaneum	156
secale_cereale	40
selaginella_moellendorffii	44
sesamum_indicum	111
setaria_italica	194
setaria_viridis	66
solanum_lycopersicum	211
solanum_tuberosum	145
sorghum_bicolor	17
sphenostylis_stenocarpa	325
theobroma_cacao	30
trifolium_pratense	315
triticum_aestivum	20
triticum_aestivum_alchemy	205
triticum_dicoccoides	244
triticum_spelta	204
triticum_timopheevii	333
triticum_turgidum	245
triticum_urartu	131
vicia_faba	181
vigna_angularis	116
vigna_radiata	43
vigna_unguiculata	69
vitis_vinifera	404
zea_mays	141