| |
| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/44/4/1450
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/44/4/1450
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Johnson, R. C.;
Bradley, V. L.;
Evans, M. A. |
|---|
| Author Affiliation: | Johnson and Bradley: USDA-ARS; and Evans: Department of Statistics, Washington State University, Pullman, Washington |
|---|
| Title: | Inflorescence sampling improves effective population size of grasses |
|---|
| Section: | Plant genetic resources
Other records with the "Plant genetic resources" Section
|
|---|
| Source: | Crop Science. Vol. 44, No. 4, July/August 2004, p. 1450-1455. |
|---|
| Publishing Information: | Madison, WI: Crop Science Society of America |
|---|
| # of Pages: | 6 |
|---|
| Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/44/4/1450
Last checked: 11/16/2016
Notes: Abstract only |
|---|
| Keywords: | TIC Keywords: Seed production; Seed collection; Seed harvesting; Festuca pratensis; Lolium perenne; Bromus inermis; Dactylis glomerata; Festuca arundinacea; Phalaris aquatica; Genes
|
|---|
| Abstract/Contents: | "Variation in seed production per plant leads to reductions in effective population size (Ne), which is a major factor promoting genetic drift of heterogenetic populations during seed collection and regeneration. The objectives of this study were (i) to compare Ne to the census population size (Nc) among different seed harvest methods; (ii) use inflorescence sampling to determine Ne/Nc for numerous heterogenetic grass species, and (iii) to predict the optimum number of inflorescences per plant to most efficiently increase Ne. Estimates of Ne/Nc from rubbing whole plants, cutting whole plants, and from sampling a constant two inflorescences per plant were made on Festuca pratensis Huds., Lolium perenne L., and Pseudoroegneria spicata (Pursh) Á. Löve accessions. Inflorescence sampling was also completed on four accessions of Bromus inermis Leyss., Dactylis glomerata L., F. arundinacea Schreb., L. perenne, Pseudoroegneria spicata, and Phalaris aquatica L. The mean Ne/Nc for the inflorescence method was 0.78, significantly higher then [than] the 0.64 average for the cut or rub methods. For all species and entries, the slope of the curves describing Ne/Nc to inflorescence number was initially steep from 1 to 3 inflorescences and then leveled off asymptotically. Thus, most of the benefit occurs after sampling only a few inflorescences. The results show that sampling a constant number of inflorescences per plant promotes Ne and reduces the potential for genetic drift associated with collection and regeneration of heterogenetic grass populations." |
|---|
| Language: | English |
|---|
| References: | 12 |
|---|
| Note: | Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnson, R. C., V. L. Bradley, and M. A. Evans. 2004. Inflorescence sampling improves effective population size of grasses. Crop Sci. 44(4):p. 1450-1455. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=97009 |
| If there are problems with this record, send us feedback about record 97009. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/44/4/1450
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/44/4/1450
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: SB 183 .C7 |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
