| |
| Author(s): | Huff, David R.;
Wu, Lin |
|---|
| Author Affiliation: | Department of Environmental Horticulture, University of California, Davis, California 95616 |
|---|
| Title: | Distribution and inheritance of inconstant sex forms in natural populations of dioecious buffalograss (Buchloe dactyloides) |
|---|
| Section: | Systematics and evolution
Other records with the "Systematics and evolution" Section
|
|---|
| Source: | American Journal of Botany. Vol. 79, No. 2, February 1992, p. 207-215. |
|---|
| Publishing Information: | Columbus, OH: Botanical Society of America |
|---|
| # of Pages: | 9 |
|---|
| Keywords: | TIC Keywords: Bouteloua dactyloides; Sex form composition; Genetic factors; Genetic variability; Evolution; Population genetics; Seed propagation; Vegetative propagation
|
|---|
| Abstract/Contents: | "Variations of sex inconstancy were examined for vegetative and seed samples from eight natural populations of buffalograss located along two east-west transects crossing the shortgrass prairies of Oklahoma, New Mexico, and Texas. Each of the eight populations was found to contain inconstant (monoecious) sex forms. Sex form distributions ranged from the Guymon vegetative sample, having no inconstant sex forms, to the Chillicothe seed sample in which the frequency of inconstant sex forms was nearly 70%. Frequencies of inconstant sex forms were generally higher for seed samples than for vegetative samples. Male to female sex ratio of constant (dioecious) sex forms generally did not differ from 1:1 expectations. Inconstant sex forms were more common among peripheral populations where buffalograss vegetation coverage was sparse than for more central populations having a higher concentration of buffalograss vegetation. Quantitative measures of sex inconstancy from artificial crosses were significantly (P < 0.001) correlated with the additive linear model of general combining ability, suggesting that sex determination in buffalograss has high heritability. The possible selection forces affecting the frequency of monoecious sex forms among natural populations are discusssed." |
|---|
| Language: | English |
|---|
| References: | 41 |
|---|
| Note: | Figures
Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Huff, D. R., and L. Wu. 1992. Distribution and inheritance of inconstant sex forms in natural populations of dioecious buffalograss (Buchloe dactyloides). Amer. J. Bot. 79(2):p. 207-215. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=56122 |
| If there are problems with this record, send us feedback about record 56122. |
| Choices for finding the above item: |
|---|
| 
MSU catalog number: QK 1 .B345 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
