problem with resolve_polytomies()

[Wasiu Akanni]

Hi, 

I tried to use the resolve_polytomies() method to resolve a tree but it kept returning the tree unresolved.

This is a snippet of my script

"""

tree = Tree.get_from_string(i , "newick", tree_offset=0

tree.resolve_polytomies()

"""

The tree i am trying to resolve is the following

""

(OUTGROUP,(((((Cirquella_espinata,Cirquella_nummularia,Cirquella_nelsoni),((Bradyfallotaspis_fusa,Paranevadella_subgroenlandicus),(Cambroinyoella_wallacei,(Geraldinella_corneiliana,((Cambropallas_telesto,Andalusiana_cornuta),((Gabriellus_sp,((((((((((((((Biceratops_nevadensis,Peachella_iddingsi),Olenelloides_armatus),((((Bolbolenellus_altifrontatus,Bolbolenellus_euryparia),Bolbolenellus_sphaerulosus),Bolbolenellus_hermani),Bolbolenellus_groenlandicus)),Nephrolenellus_multinodus),((Fremontella_halli,(((Bristolia_anteros,Bristolia_sp),Bristolia_insolens),(((Bristolia_bristolensis,Bristolia_harringtoni),Bristolia_fragilis),Bristolia_mohavensis))),Lochmanolenellus_mexicana)),Laudonia_bispinata),Mummaspis_occidens),Fritzolenellus_truemani),((((Esmeraldina_rowei,(Holmiella_preancora,Holmiella_falcuta)),(Palmettaspis_cometes,((Palmettaspis_consort,Palmettaspis_lidensi),Palmettaspis_paralle))),((Kjerulfia_lata,((Schmidtiellus_mickwitzi_torelli,Schmidtiellus_sp),Schmidtiellus_reetae)),((Baltobergstroemia_mobergi,Baltobergstroemia_sulcata),Baltobergstroemia_sp))),(Holmia_kjerulfi,(Holmia_lapponica,Holmia_palpebra)))),Wanneria_walcottana),Lemdadella_antarcticae),((((Elliptocephala_asaphoides,Elliptocephala_bicensis),Elliptocephala_walcotti),Elliptocephala_mediocris),(((Elliptocephala_logani,Elliptocephala_parvifrons,(Elliptocephala_mirabilis,Elliptocephala_lundgreni)),Elliptocephala_paraoculus),Elliptocephala_laxocules))),Choubertella_spinosa),((Olenellus_agellus,(((Olenellus_clarki,Olenellus_nevadensis,Olenellus_parvofrontatus,Olenellus_roddyi,Olenellus_transitans),(((Olenellus_crassimarginatus,Olenellus_getzi),Olenellus_robsonensis),Olenellus_thompsoni)),Olenellus_romensis)),((Mesolenellus_hyperborea,Mesolenellus_svalbardensis),((Mesonacis_bonnensis,((Mesonacis_cylindricus,Mesonacis_hamoculus),(Mesonacis_eagerensis,Mesonacis_vermontanus))),Mesonacis_fremonti))))),(Callavia_broeggeri,(Callavalonia_callavei,(Sdzuyomia_lotzei,((Judomia_tera,Judomia_absita),(Bondonella_typica,Neltneria_jacqueti))))))))))),(Nevadella_perfecta,(Nevadella_mountjoyi,(Nevadella_cartlandi,Nevadella_eucharis)))),Nevadia_weeksi),Plesionevadia_burri),Pseudojudomia_egregia);

"""

Can anyone tell where I am going wrong

Thanking you in advance

--

Wasiu Ajenifuja Akanni

Post Doctoral Research assistant
Department of Life Sciences
Room DC1 304, North West building  | Natural History Museum | London | SW7 5BD | 020 7942 5412

 |

PhD student - IRCSET scholar

Molecular Evolution and Bioinformatics Unit

National University of Ireland, Maynooth

Ireland