preferred_name: POLL or POLM extends aligned DNA DSB ends to fill gaps (Canis familiaris)
preferred_name_lc: poll or polm extends aligned dna dsb ends to fill gaps (canis familiaris)
label: POLL or POLM extends aligned DNA DSB ends to fill gaps (Canis familiaris)
label_lc: poll or polm extends aligned dna dsb ends to fill gaps (canis familiaris)