Claim · model-written summary
Tribes Jacarandeae (Jacaranda) and Tecomeae (Tecoma) had unusual chromosome numbers with 2n = 36.
- Taxon
- BignoniaceaeBignoniaceaet0
- Material
- Jacarandae3
- Outcome
- were unusuale3
- Value
- 2n = 36e3
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Verbatim
t0“Karyotypes and DNA content in Bignoniaceae”
e3“Tribes Jacarandeae (Jacaranda) and Tecomeae (Tecoma) were unusual (with 2n = 36)”
Title
Karyotypes and DNA content in Bignoniaceae
Marianela Piazzano; M. Laura Las Peñas; Franco Chiarini; et al. Caryologia 2015. doi:10.1080/00087114.2015.1032606
Other claims from this paper (19)
- Observation Most Bignoniaceae taxa are diploid with 2n = 40.
- Observation Dolichandra unguis-cati and Handroanthus chrysotrichus were polyploid with 2n = 80.
- Observation Podranea ricasoliana had 2n = 38.
- Observation The basic number x = 20 is proposed for the Bignoniaceae family.
- Observation The average haploid karyotype length was 28.13 m.
- Observation Dolichandra cynanchoides had the shortest haploid karyotype, 18.63.
- Observation Dolichandra unguis-cati had the longest haploid karyotype, 37.63.
- Observation Type m chromosomes were the most common chromosome type.
- Observation One to five sm chromosome pairs were found in 16 species.
- Observation One st chromosome pair was found in Cuspidaria convoluta and Podranea ricasoliana.
- Observation One to four microsatellites were detected in nine species.
- Observation The karyotypes of the Bignoniaceae species are symmetrical.
- Observation Asymmetry index A1 ranged from 0.11 to 0.23.
- Observation Asymmetry index A2 ranged from 0.14 to 0.22.
- Observation The karyotypes of Podranea ricasoliana and Cuspidaria convoluta are the most asymmetrical.
- Observation The 1C nuclear DNA content of 12 species ranged from 0.64 to 2.02 pg.
- Observation Most Bignoniaceae species were karyologically indistinguishable by conventional staining.
- Observation The family shows a common karyotypical pattern of mostly small m chromosomes with few cryptic rearrangements.
- Observation The average chromosome length was 1.21 m; chromosomes are small.