Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13207 |
Low siring success of females with an acquired male function illustrates the legacy of sexual dimorphism in constraining the breakdown of dioecy | |
del Blanco, Luis Santos1,3,4; Tudor, Eleri2,5; Pannell, John R.1 | |
2019-03-01 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2019 |
卷号 | 22期号:3页码:486-497 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; England; Spain |
英文摘要 | Dioecy has often broken down in flowering plants, yielding functional hermaphroditism. We reasoned that evolutionary transitions from dioecy to functional hermaphroditism must overcome an inertia of sexual dimorphism, because modified males or females will express the opposite sexual function for which their phenotypes have been optimised. We tested this prediction by assessing the siring success of monoecious individuals of the plant Mercurialis annua with an acquired male function but that are phenotypically still female-like. We found that pollen dispersed by female-like monoecious individuals was similar to 1/3 poorer at siring outcrossed offspring than pollen from monoecious individuals with an alternative male-like inflorescence. We conclude that whereas dioecy might evolve from functional hermaphroditism by conferring upon individuals certain benefits of sexual specialisation, reversion from a strategy of separate sexes to one of combined sexes must overcome constraints imposed by the advantages of sexual dimorphism. The breakdown of dioecy must therefore often be limited to situations in which outcrossing cannot be maintained and where selection favours a capacity for inbreeding by functional hermaphrodites. |
英文关键词 | Dioecy functional hermaphroditism gain curves inflorescence architecture Mercurialis annua monoecy sex allocation sexual dimorphism |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000457829800007 |
WOS关键词 | ANDRODIOECIOUS MERCURIALIS-ANNUA ; WIND-POLLINATED HERB ; POLLEN LIMITATION ; REPRODUCTIVE ASSURANCE ; INBREEDING DEPRESSION ; PHYLOGENETIC ANALYSIS ; SELF-FERTILIZATION ; BREEDING SYSTEMS ; EVOLUTION ; MAINTENANCE |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31305 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Lausanne, Dept Ecol & Evolut, Biophore Bldg, CH-1015 Lausanne, Switzerland; 2.Univ Oxford, Dept Plant Sci, Oxford OX1 3RB, England; 3.Inst Univ Valladolid INIA, Sustainable Forest Management Res, Avda Madrid, Palencia 34071, Spain; 4.Biotecnol Forestal Aplicada, Calle Curtidores 17, Palencia 34004, Spain; 5.John Innes Ctr, Norwich Res Pk, Norwich NR4 7UH, Norfolk, England |
推荐引用方式 GB/T 7714 | del Blanco, Luis Santos,Tudor, Eleri,Pannell, John R.. Low siring success of females with an acquired male function illustrates the legacy of sexual dimorphism in constraining the breakdown of dioecy[J]. ECOLOGY LETTERS,2019,22(3):486-497. |
APA | del Blanco, Luis Santos,Tudor, Eleri,&Pannell, John R..(2019).Low siring success of females with an acquired male function illustrates the legacy of sexual dimorphism in constraining the breakdown of dioecy.ECOLOGY LETTERS,22(3),486-497. |
MLA | del Blanco, Luis Santos,et al."Low siring success of females with an acquired male function illustrates the legacy of sexual dimorphism in constraining the breakdown of dioecy".ECOLOGY LETTERS 22.3(2019):486-497. |
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