Hematocrit/hemoglobin Quantitative Trait Locus 1, is also known as hematocrit/hemoglobin quantitative trait locus on chromosome 6. An important gene associated with Hematocrit/hemoglobin Quantitative Trait Locus 1 is HCHGQ1 (Hematocrit/Hemoglobin Quantitative Trait Locus 1). Affiliated tissues include heart.