| Title |
Oryzalin-induced chromosome doubling in Rosa and its effect on plant morphology and pollen viability
|
|---|---|
| Published in |
Theoretical and Applied Genetics, September 2003
|
| DOI | 10.1007/s00122-003-1374-1 |
| Pubmed ID | |
| Authors |
M. J. Kermani, V. Sarasan, A. V. Roberts, K. Yokoya, J. Wentworth, V. K. Sieber |
| Abstract |
Shoot tips of the diploid rose Thérèse Bugnet were treated in vitro to oryzalin at concentrations of 5 and 15 microM. Tetraploid shoots were obtained in highest frequencies (40%) after exposure to 5 microM oryzalin for 14 days. Thin (1 mm) nodal sections were treated with 5 microM oryzalin and the highest frequency of tetraploids (66%) was obtained after exposure for only 1 day. The shorter exposure times required to induce chromosome doubling in thin nodal sections is attributed to the more efficient delivery of oryzalin to the meristem. Tetraploids were obtained from four diploid roses and hexaploids from two triploid roses. Chromosome doubling was accompanied by increases in thickness and a darker green colouration of the leaves and, in all diploid to tetraploid and one triploid to hexaploid conversion, the breadth/length ratio of leaflets was significantly increased. Internodes were longer in tetraploids than diploids but significantly shorter in hexaploids than triploids. The number of petals per flower in the tetraploid form of Thérèse Bugnet was double that of the diploid. Significant increases in pollen viability accompanied chromosome doubling of all four diploids and one of the two triploids. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 74 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Iran, Islamic Republic of | 1 | 1% |
| Spain | 1 | 1% |
| United States | 1 | 1% |
| Germany | 1 | 1% |
| Unknown | 70 | 95% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 13 | 18% |
| Student > Master | 11 | 15% |
| Student > Bachelor | 9 | 12% |
| Student > Ph. D. Student | 8 | 11% |
| Student > Doctoral Student | 5 | 7% |
| Other | 9 | 12% |
| Unknown | 19 | 26% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 44 | 59% |
| Biochemistry, Genetics and Molecular Biology | 5 | 7% |
| Environmental Science | 1 | 1% |
| Nursing and Health Professions | 1 | 1% |
| Physics and Astronomy | 1 | 1% |
| Other | 2 | 3% |
| Unknown | 20 | 27% |
Attention Score in Context
This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 16 December 2018.
All research outputs
#6,754,776
of 23,794,258 outputs
Outputs from Theoretical and Applied Genetics
#1,203
of 3,565 outputs
Outputs of similar age
#15,850
of 51,039 outputs
Outputs of similar age from Theoretical and Applied Genetics
#7
of 27 outputs
Altmetric has tracked 23,794,258 research outputs across all sources so far. This one has received more attention than most of these and is in the 70th percentile.
So far Altmetric has tracked 3,565 research outputs from this source. They receive a mean Attention Score of 4.9. This one has gotten more attention than average, scoring higher than 65% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 51,039 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 67% of its contemporaries.
We're also able to compare this research output to 27 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 74% of its contemporaries.