Rice Trait Ontology

ID	NAME	DEFINITION	IS_A
TO:0000224	iron sensitivity	"Sensitivity to the iron ion content in the growth medium. It is important for synthesis of chlorophyll and some enzyme activities." [Gramene:pankaj_jaiswal, IRRI:SES]	TO:0000080 ! micronutrient sensitivity
TO:0000225	stamen number	"An androecium morphology trait (TO:0000215) which is the number of stamens (PO:0009029) present in an androecium (PO:0009061)." [Gramene:pankaj_jaiswal, PO:0009029, PO:0009049, TO:austin_meier, TO:moorel]	TO:0000994 ! androecium morphology traitTO:0000215 ! stamen morphology trait
TO:0000226	auricleless	"A measure of either the absence of auricle or the length of auricle being zero." [Gramene:pankaj_jaiswal]	TO:0000655 ! leaf growth and development traitTO:0002717 ! leaf sheath auricle morphology trait
TO:0000227	root length	"A root morphology trait (TO:0000043) which is the length of a root (PO:0009005)." [GR:pj, Gramene:jcl, TO:austin_meier, TO:cooperl]	TO:0000043 ! root morphology trait
TO:0000228	moisture content trait	"A plant quality trait (TO:0000597) which is the amount of moisture in a plant structure (PO:0009011)." [TO:cooperl]	TO:0000597 ! plant quality trait
TO:0000229	photoperiod sensitivity trait	"Sensitivity response on the plant development and the related growth stages by the duration of light, to which the plant has been exposed." [Gramene:pankaj_jaiswal]	TO:0000075 ! light sensitivityWTO:0000177 ! photosensitivity
TO:0000230	crown rootless	"Absence of crown roots in the plant." [Gramene:pankaj_jaiswal]	TO:0002685 ! crown root numberTO:0000198 ! rootless
TO:0000231	endospermless	"An endosperm morphology trait (TO:0000575) which is the absence of endosperm (PO:0009089) in the seed (PO:0009010) or grain." [Gramene:pankaj_jaiswal, PO:0009010, PO:0009089, TO:moorel]	TO:0000575 ! endosperm morphology traitTO:0000587 ! endosperm quality
TO:0000232	rice cytoplasmic male sterility	"Caused by the interaction of cytoplasmic (mitochondrial) and nuclear genomes. The trait shows non-mendelian inheritance or maternal inheritance." [Gramene:pankaj_jaiswal, IRRI:SES]	TO:0000580 ! cytoplasmic male sterility
TO:0000233	root volume	"A root morphology trait (TO:0000043) which is the volume of a root (PO:0009005)." [GR_REF:6917, Gramene:pankaj_jaiswal]	TO:0000043 ! root morphology trait
TO:0000234	radicleless	"The embryo of the germinating seed does not produce roots." [Gramene:pankaj_jaiswal]	TO:0000198 ! rootless
TO:0000235	liguleless	"A ligule morphology trait (TO:0002748) which is the absence of a ligule (PO:0020105)." [Gramene:pankaj_jaiswal, PO:0020105, TO:cooperl]	TO:0002748 ! ligule morphology trait
TO:0000236	crop damage resistance	None	TO:0000179 ! biotic stress trait
TO:0000237	water stress trait	"Response by the plant in terms of sensitivity to water stress (quality and quantity of water)." [Gramene:pankaj_jaiswal]	TO:0000237 ! water stress traitTO:0000168 ! abiotic stress trait
TO:0000238	growth media composition sensitivity	"A chemical stress sensitivity (TO:0000238) which is the response by the plant to a specific growth medium." [TO:moorel]	TO:0000482 ! chemical stress sensitivity
TO:0000239	plant genetic trait unknown	"OBSOLETE." []	None
TO:0000240	sterile lemma length	"A lemma morphology trait (TO:1000023) which is the length of a sterile lemma (PO:0009040)." [IRRI:SES, PATO:0000122, PO:0009040, TO:cooperl, TO:moorel]	TO:0000650 ! lemma length
TO:0000241	leaf number	"A shoot system morphology trait (TO:0000077) which is the number of leaves (PO:0025034) in a shoot system (PO:0009006) of a plant." [Gramene:pankaj_jaiswal, TO:cooperl]	TO:0000077 ! shoot system morphology traitTO:0000748 ! leaf morphology trait
TO:0000242	microbial damage resistance	"Response by the plant in terms of resistivity or sensitivity to microbes." [Gramene:pankaj_jaiswal]	TO:0000236 ! crop damage resistance
TO:0000243	in vitro regeneration ability	"Measured as number of calli capable of differentiating into roots and(or) shoots under in vitro tissue culture condition." [Gramene:pankaj_jaiswal]	TO:0000250 ! plant vigor trait