Mepụta nsụgharị dị mgbagwoju anya nke ahịrịokwu a A quantitative trait locus (QTL) bụ mpaghara DNA nke jikọtara ya na njirimara phenotypic.
N'ezie, ụdị okwu dị mgbagwoju anya nke ahịrịokwu ahụ bụ "Ọnọdụ njirimara njirimara (QTL) bụ mpaghara DNA nke jikọtara ya na njirimara phenotypic - ndị a QTLs na-ahụkarị na chromosomes dị iche iche. "