Paper · 1980 · Botanical Journal of the Linnean Society

Cytotaxonomy of Commelinaceae: chromosome numbers of some African and Asiatic species

R. B. FADEN; Y. SUDA

10
claims
13
verbatim quotes
29
citations
1
research areas
—
Not open access

Abstract

Chromosome counts are reported for 32 taxa (31 species and 1 subspecies) belonging to 10 genera of Commelinaceae from seven African and Asiatic countries. Counts for 13 species and 1 subspecies are recorded for the first time. Published chromosome numbers for Anthericopsis and Polyspatha are confirmed. It is suggested that Palisota, Pollia and Stanfieldiella each has a single basic number (x = 20, 16 and 11, respectively). The known cytological diversity in Floscopa is extended. The third continental African species of Coleotrype is found to have the same chromosome number (2n = 36) as the other two. The preponderance of the basic number x = 15 in Commelina is supported. The uncommon basic number x = 13 is reported in four taxa of Cyanotis together with karyotypic differences. The basic number x = 6 is found in a second species of Murdannia. Karyotypic data in addition to chromosome numbers are presented for 24 of the 32 taxa investigated. Karyotypes are found to be useful in assessing relationships in the family, and evolutionary trends in the karyotype are noted.

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Claims 10

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Palisota, Pollia and Stanfieldiella are suggested to each have a single basic chromosome number (x = 20, 16 and 11).

Taxon
Palisota, Pollia and StanfieldiellaPalisotaStanfieldiellaPolliae4
Outcome
single basic numbere4
Value
x = 20, 16 and 11e4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Palisota
Palisota · Taxon · picture of the genus (one of its species)Rufous-crowned Sparrow · CC BY-SA 4.0 · Wikimedia Commons ↗
Pollia
Pollia · Taxon · picture of the genus (one of its species)ISAKA Yoji ( cory ) [ Recent works / Other works ] · CC BY 2.1 jp · Wikimedia Commons ↗

Verbatim

e0

“Chromosome counts are reported for 32 taxa (31 species and 1 subspecies) belonging to 10 genera of Commelinaceae from seven African and Asiatic countries”

✓ located verbatim in the source · abstract, characters 0–153 · show in text ↑
e4

“It is suggested that Palisota, Pollia and Stanfieldiella each has a single basic number (x = 20, 16 and 11, respectively)”

✓ located verbatim in the source · abstract, characters 304–425 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The third continental African species of Coleotrype has 2n = 36 chromosomes, the same as the other two.

Taxon
ColeotrypeColeotrypee6
Outcome
chromosome numbere6
Value
2n = 36e6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Coleotrype
Coleotrype · Taxon · picture of the genus (one of its species)Daniel J. Layton · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e6

“The third continental African species of Coleotrype is found to have the same chromosome number (2n = 36) as the other two”

✓ located verbatim in the source · abstract, characters 484–606 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The basic number x = 15 is supported as the preponderant basic number in Commelina.

Taxon
CommelinaCommelinae7
Outcome
preponderance of the basic numbere7
Value
x = 15e7

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Commelina
Commelina · Taxon · picture of the genus (one of its species)Kropsoq · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e7

“The preponderance of the basic number x = 15 in Commelina is supported”

✓ located verbatim in the source · abstract, characters 608–678 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The uncommon basic number x = 13 is reported in four Cyanotis taxa, together with karyotypic differences.

Taxon
CyanotisCyanotise1
Outcome
basic numbere1
Value
x = 13e1
Qualifier
together with karyotypic differencese1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cyanotis
Cyanotis · Taxon · picture of the genus (one of its species)Oleg Kosterin · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The uncommon basic number x = 13 is reported in four taxa of Cyanotis together with karyotypic differences”

✓ located verbatim in the source · abstract, characters 680–786 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

A second Murdannia species has basic number x = 6.

Taxon
MurdanniaMurdanniae1
Outcome
basic numbere1
Value
x = 6e1
Qualifier
a second speciese1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Murdannia
Murdannia · Taxon · picture of the genus (one of its species)J.M.Garg · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“The basic number x = 6 is found in a second species of Murdannia”

✓ located verbatim in the source · abstract, characters 788–852 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Chromosome counts are reported for 32 Commelinaceae taxa.

Taxon
CommelinaceaeCommelinaceaee0
Outcome
Chromosome countse0
Value
32 taxae0

Verbatim

e0

“Chromosome counts are reported for 32 taxa (31 species and 1 subspecies) belonging to 10 genera of Commelinaceae from seven African and Asiatic countries”

✓ located verbatim in the source · abstract, characters 0–153 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Chromosome counts for 13 species and 1 subspecies are recorded for the first time.

Taxon
CommelinaceaeCommelinaceaee0
Outcome
Countse2
Value
13 species and 1 subspeciese2
Qualifier
recorded for the first timee2

Verbatim

e0

“Chromosome counts are reported for 32 taxa (31 species and 1 subspecies) belonging to 10 genera of Commelinaceae from seven African and Asiatic countries”

✓ located verbatim in the source · abstract, characters 0–153 · show in text ↑
e2

“Counts for 13 species and 1 subspecies are recorded for the first time”

✓ located verbatim in the source · abstract, characters 155–225 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Published chromosome numbers for Anthericopsis and Polyspatha are confirmed.

Taxon
Anthericopsis and PolyspathaMurdanniaPolyspathae3
Outcome
published chromosome numberse3
Qualifier
confirmede3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Murdannia
Murdannia · Taxon · picture of the genus (one of its species)J.M.Garg · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e3

“Published chromosome numbers for Anthericopsis and Polyspatha are confirmed”

✓ located verbatim in the source · abstract, characters 227–302 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The known cytological diversity in Floscopa is extended.

Taxon
FloscopaFloscopae5
Outcome
known cytological diversitye5
Qualifier
extendede5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Floscopa
Floscopa · Taxon · picture of the genus (one of its species)JcliuNCNU · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e5

“The known cytological diversity in Floscopa is extended”

✓ located verbatim in the source · abstract, characters 427–482 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Karyotypes are useful for assessing relationships in the Commelinaceae family, and evolutionary trends in the karyotype are noted.

Taxon
CommelinaceaeCommelinaceaee0
Outcome
assessing relationships in the familye1
Qualifier
evolutionary trends in the karyotype are notede1

Verbatim

e0

“Chromosome counts are reported for 32 taxa (31 species and 1 subspecies) belonging to 10 genera of Commelinaceae from seven African and Asiatic countries”

✓ located verbatim in the source · abstract, characters 0–153 · show in text ↑
e1

“Karyotypes are found to be useful in assessing relationships in the family, and evolutionary trends in the karyotype are noted”

✓ located verbatim in the source · abstract, characters 954–1080 · show in text ↑