DOI: 10.1111/ele.12692
Scopus记录号: 2-s2.0-84996435949
论文题名: Frequency-dependent selection for rare genotypes promotes genetic diversity of a tropical palm
作者: Browne L. ; Karubian J.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 12 起始页码: 1439
结束页码: 1447
语种: 英语
英文关键词: Chocó rainforest
; demography
; genetic diversity
; intraspecific variation
; Oenocarpus bataua
; rapid evolution
; reproductive success
; seedling recruitment
; tropics
Scopus关键词: Oenocarpus bataua
; Arecaceae
; Ecuador
; forest
; genetic variation
; genetics
; genotype
; physiology
; tropic climate
; Arecaceae
; Ecuador
; Forests
; Genetic Variation
; Genotype
; Tropical Climate
英文摘要: Negative frequency-dependent selection among species is a key driver of community diversity in natural systems, but the degree to which negative frequency-dependent selection shapes patterns of survival and genetic diversity within species is poorly understood. In a 5-year field experiment, we show that seedlings of a tropical palm with rare genotypes had a pronounced survival advantage over seedlings with common genotypes, with effect sizes comparable to that of light availability. This ‘rare genotype advantage’ led to an increase in population-wide genetic diversity among seedlings compared to null expectations, as predicted by negative frequency-dependent selection, and increased reproductive success in adult trees with rare genotypes. These results suggest that within-species negative frequency-dependent selection of genotypes can shape genetic variation on ecologically relevant timescales in natural systems and may be a key, overlooked source of non-random mortality for tropical plants. © 2016 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107687
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, LA, United States; Foundation for the Conservation of the Tropical Andes, Quito, Ecuador
Recommended Citation:
Browne L.,Karubian J.. Frequency-dependent selection for rare genotypes promotes genetic diversity of a tropical palm[J]. Ecology Letters,2016-01-01,19(12)