Claim · model-written summary
Block-type heterochromatin was found in three species of section Paniculatae.
NicotianaNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A survey of the species of the genus Nicotiana was carried out to determine the distribution and the cytological characteristics of heterochromatin in this genus”
e3“was found in three species of the section Paniculatae, three species of the section Tomentosae, and two species of the section Noctiflorae”
Title
THE DISTRIBUTION OF HETEROCHROMATIN IN THE GENUS NICOTIANA (SOLANACEAE)
James F. Merritt American Journal of Botany 1974. doi:10.1002/j.1537-2197.1974.tb14038.x
Other claims from this paper (5)
- Observation All examined Nicotiana species possess knob-type heterochromatin.
- Observation Block-type heterochromatin was found in three species of section Tomentosae.
- Observation Block-type heterochromatin was found in two species of section Noctiflorae.
- Observation The three block-type heterochromatin categories differ in overall size, staining properties and location of the blocks.
- Observation Knobs are most frequently located near the centromere, the nucleolar organizer and the chromosome ends.