Claim · model-written summary
Zamia angustifolia, Z. integrifolia, Z. pumila and Z. pygmaea had the common chromosome number 2n=16.
- Taxon
- Zamia angustifolia, Z. integrifolia, Z. pumila and Z. pygmaea
Zamia pumila
Zamia integrifolia
Zamia pygmaea
Zamia angustifoliae1 - Outcome
- chromosome numbere1
- Value
- 2n= 16e1
Verbatim
e1“Zamia angustifolia, Z. integrifolia, Z. pumila and Z. pygmaea had the common chromosome number of 2n= 16”
Title
Norikazu Tagashira; Katsuhiko Kondo CYTOLOGIA 1999. doi:10.1508/cytologia.64.449
Other claims from this paper (14)
- Observation The four 2n=16 Zamia species shared a karyotype of 12 median-, 2 submedian- and 2 subterminal-centromeric chromosomes.
- Observation The four 2n=16 Zamia species commonly showed a CMA-positive band in the centromeric region of 2 median-, 2 submedian- and 2 subterminal-centromeric chromosomes.
- Observation Z. furfuracea, Z. loddigesii, Z. skinneri and Z. vazquezii had the common chromosome number 2n=18.
- Observation These four 2n=18 Zamia species commonly had a karyotype of 10 median- and 2 submedian-centromeric chromosomes.
- Observation These four 2n=18 Zamia species differed from each other in 6 chromosomes.
- Observation Zamia furfuracea and Z. loddigesii displayed the CMA-positive band in the centromeric region of 8 median- and 6 acro-centromeric chromosomes.
- Observation Zamia skinneri showed the CMA-positive band in the centromeric region of 4 acro- and 2 terminal-centromeric chromosomes.
- Observation Z. vazquezii showed the CMA-positive band in the centromeric region of 4 median- and 6 terminal-centromeric chromosomes.
- Observation Zamia muricata had the chromosome number 2n=23, which differed from the previous count.
- Observation Zamia muricata had a karyotype of 7 median- and 16 acro-centromeric chromosomes.
- Observation Zamia muricata showed the CMA-positive band in the centromeric region of 4 median- and 16 acro-centromeric chromosomes.
- Observation The nine Zamia species studied exhibited unclear DAPI-positive bands near the centromeric region of most of their chromosomes.
- Observation Ceratozamia mexicana, closely related to Zamia, had the chromosome number 2n=16.
- Observation Ceratozamia mexicana showed the CMA-positive band at the terminal region of 6 chromosomes.