Abstract
Rosa setigera is unique within the genus because the plant is cryptically dioecious, the flowers of male and female plants appearing identical. Flowers produce no nectar, and the plants rely upon insects, which feed on or collect pollen, for pollination. The plants' gynoecia in both sexes are extremely similar; however, overall the synstigmatic length, synstylar length, ovary length, ovule length, and ovule width are greater in flowers of female plants than in flowers of male plants. Only the single stigma width of male plants was found to be greater than that of female plants. Furthermore, ovary volume, ovary width, ovule length, ovule width, and ovule volume in flowers of female plants increase over the period of 4 d of a flower's life (i.e., with petals), whereas in flowers of male plants those characters either decrease or remain relatively constant over the 4-d time period. No overall differences in synstigmatic width, synstylar width, single stigma length, synstigmatic area, and ovary width were found. The results indicate that dioecy may be a relatively recent occurrence in this species.
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Claims 9
Claim · model-written summary
Synstigmatic length, synstylar length and ovary length were greater in flowers of female than male Rosa setigera plants.
- Taxon
- Rosa setigera
Rosa setigerat0 - Organ / stage
- flowerse0
- Outcome
- synstigmatic length, synstylar length, ovary lengthe0
- Direction
- greatere0
- Comparator
- flowers of male plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overall the synstigmatic length, synstylar length, ovary length, ovule length, and ovule width are greater in flowers of female plants than in flowers of male plants”
t0“Rosa setigera”
Claim · model-written summary
Ovule length and ovule width were greater in flowers of female than male Rosa setigera plants.
- Taxon
- Rosa setigeraRosa setigerat0
- Organ / stage
- flowerse0
- Outcome
- ovule length, and ovule widthe0
- Direction
- greatere0
- Comparator
- flowers of male plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“overall the synstigmatic length, synstylar length, ovary length, ovule length, and ovule width are greater in flowers of female plants than in flowers of male plants”
t0“Rosa setigera”
Claim · model-written summary
Only single stigma width was greater in male than female Rosa setigera plants.
- Taxon
- Rosa setigeraRosa setigerat0
- Organ / stage
- single stigma widthe0
- Outcome
- single stigma widthe0
- Direction
- greatere0
- Comparator
- female plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only the single stigma width of male plants was found to be greater than that of female plants”
t0“Rosa setigera”
Claim · model-written summary
Ovary volume and ovary width in female flowers increased over the 4-day flower life.
- Taxon
- Rosa setigeraRosa setigerat0
- Organ / stage
- flowerse0
- Outcome
- ovary volume, ovary widthe0
- Direction
- increasee0
- Qualifier
- over the period of 4 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ovary volume, ovary width, ovule length, ovule width, and ovule volume in flowers of female plants increase over the period of 4 d of a flower's life”
t0“Rosa setigera”
Claim · model-written summary
Ovule length, width and volume in female flowers increased over the 4-day flower life.
- Taxon
- Rosa setigeraRosa setigerat0
- Organ / stage
- flowerse0
- Outcome
- ovule length, ovule width, and ovule volumee0
- Direction
- increasee0
- Qualifier
- over the period of 4 de0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ovary volume, ovary width, ovule length, ovule width, and ovule volume in flowers of female plants increase over the period of 4 d of a flower's life”
t0“Rosa setigera”
Claim · model-written summary
In male flowers the ovary and ovule characters either decreased or remained relatively constant over the 4-day period.
- Taxon
- Rosa setigeraRosa setigerat0
- Organ / stage
- flowers of male plantse0
- Outcome
- ovary volume, ovary width, ovule length, ovule width, and ovule volumee0
- Direction
- either decrease or remain relatively constante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ovary volume, ovary width, ovule length, ovule width, and ovule volume in flowers of female plants increase over the period of 4 d of a flower's life (i.e., with petals), whereas in flowers of male plants those characters either decrease or remain relatively constant over the 4-d time period”
t0“Rosa setigera”
Claim · model-written summary
No overall differences between male and female plants were found in synstigmatic width, synstylar width and single stigma length.
- Taxon
- Rosa setigeraRosa setigerat0
- Outcome
- synstigmatic width, synstylar width, single stigma lengthe0
- Direction
- No overall differencese0
- Comparator
- male and female plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No overall differences in synstigmatic width, synstylar width, single stigma length, synstigmatic area, and ovary width were found”
e1“the flowers of male and female plants appearing identical”
t0“Rosa setigera”
Claim · model-written summary
No overall differences between male and female plants were found in synstigmatic area and ovary width.
- Taxon
- Rosa setigeraRosa setigerat0
- Outcome
- synstigmatic area, and ovary widthe0
- Direction
- No overall differencese0
- Comparator
- male and female plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No overall differences in synstigmatic width, synstylar width, single stigma length, synstigmatic area, and ovary width were found”
e1“the flowers of male and female plants appearing identical”
t0“Rosa setigera”
Claim · model-written summary
The authors suggest that dioecy may be a relatively recent occurrence in Rosa setigera.
- Taxon
- Rosa setigeraRosa setigerat0
- Outcome
- dioecye0
- Qualifier
- may be a relatively recent occurrencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dioecy may be a relatively recent occurrence in this species”
t0“Rosa setigera”