Abstract
1. Root nodules and root tips of nine leguminous species in four genera, Vicia, Lathyrus, Pisum (Tribe Vicieae) and Trifolium (Tribe Trifolieae) were studied cytologically.2. Same chromosome number was found in both root nodules and root tips of Vicia faba. It was the first finding in plant species that there were root nodules having only diploid cells.3. Tetraploid cells were common in root nodules of the other eight species studied. In some species, however, few diploid cells and very few octoploid cells were observed in root nodules.4. No aneuploid cell was observed in root nodules of all species studied.5. It was found in each of nine species that the karyotypes of diploid or tetraploid cells in root nodules were similar to those of root tip cells, thus indicating no morphological aberration of chromosomes in root nodules.
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Claims 7
Claim · model-written summary
Vicia faba had the same chromosome number in root nodules and root tips, with only diploid nodule cells.
- Taxon
- Vicia faba
Vicia fabae0 - Organ / stage
- root nodules and root tipse0
- Outcome
- Same chromosome numbere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Same chromosome number was found in both root nodules and root tips of Vicia faba. It was the first finding in plant species that there were root nodules having only diploid cells”
Claim · model-written summary
Tetraploid cells were common in root nodules of the other eight studied legume species.
Not reportedDirection
Verbatim
e0“Tetraploid cells were common in root nodules of the other eight species studied”
e1“nine leguminous species”
Claim · model-written summary
Some studied legume species had a few diploid root-nodule cells.
Not reportedDirection
Verbatim
e0“In some species, however, few diploid cells and very few octoploid cells were observed in root nodules”
e1“nine leguminous species”
Claim · model-written summary
Some studied legume species had very few octoploid root-nodule cells.
Not reportedDirection
Verbatim
e0“In some species, however, few diploid cells and very few octoploid cells were observed in root nodules”
e1“nine leguminous species”
Claim · model-written summary
No aneuploid root-nodule cells were observed in any of the studied legume species.
Not reportedDirection
Verbatim
e0“No aneuploid cell was observed in root nodules of all species studied”
e1“nine leguminous species”
Claim · model-written summary
Diploid or tetraploid root-nodule cell karyotypes resembled root-tip cell karyotypes in all nine species.
- Taxon
- leguminous speciese1
- Outcome
- karyotypes of diploid or tetraploid cells in root nodules were similar to those of root tip cellse0
Not reportedDirection
Verbatim
e0“in each of nine species that the karyotypes of diploid or tetraploid cells in root nodules were similar to those of root tip cells”
e1“nine leguminous species”
Claim · model-written summary
The authors inferred no morphological chromosome aberration in legume root nodules.
Not reportedDirection
Verbatim
e0“thus indicating no morphological aberration of chromosomes in root nodules”
e1“nine leguminous species”