Evolution of fruit traits in ficus subgenus Sycomorus (Moraceae): to what extent do frugivores determine seed dispersal mode?
Evolution of fruit traits in ficus subgenus Sycomorus (Moraceae): to what extent do frugivores determine seed dispersal mode?
复制标题
榕树亚属（桑科）果实性状的演变：食果动物在多大程度上决定种子传播模式？
DOI：
10.1371/journal.pone.0038432
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Cruaud A
中科院分区：
文献类型：
--
作者：
Harrison RD;Rønsted N;Xu L;Rasplus JY;Cruaud A
无花果树是热带雨林中无处不在的组成部分，并表现出巨大的生态多样性。专注于榕树亚属Sycomorus，表型多样性和生态重要的旧大陆血统，我们研究了水果性状的进化使用分子遗传学构建的5个酶的DNA序列数据从63种（50%的全球多样性）。特别是，我们问的性状相关模式是否与分散剂的主要选择力塑造形态多样性或其他生态因素可能提供一个更好的解释是一致的？无花果的颜色，大小和位置（轴向，cauliflorous，或geocarpic）都是高度进化的责任，和相同的水果性状已经演变在不同的地理区域有很大的不同的传播剂。控制系统发育自相关后，我们发现，无花果的颜色和大小与无花果的位置和植物的生活史特征（最大株高和叶面积，分别）显着相关。然而，与普遍的假设相反，无花果的位置相关性差，与已知的分散剂，似乎更有可能由其他因素，如开花物候，营养经济和栖息地偏好。因此，植物生活史，直接和通过其影响无花果的位置，似乎发挥了突出的作用，在确定这些无花果的果实性状。
Fig trees are a ubiquitous component of tropical rain forests and exhibit an enormous diversity of ecologies. Focusing on Ficus subgenus Sycomorus, a phenotypically diverse and ecologically important Old World lineage, we examined the evolution of fruit traits using a molecular phylogeny constructed using 5 kilobases of DNA sequence data from 63 species (50% of global diversity). In particular, we ask whether patterns of trait correlations are consistent with dispersal agents as the primary selective force shaping morphological diversity or if other ecological factors may provide a better explanation? Fig colour, size and placement (axial, cauliflorous, or geocarpic) were all highly evolutionarily liable, and the same fruit traits have evolved in different biogeographic regions with substantially different dispersal agents. After controlling for phylogenetic autocorrelation, we found that fig colour and size were significantly associated with fig placement and plant-life history traits (maximum plant height and leaf area, respectively). However, contrary to prevailing assumptions, fig placement correlated poorly with known dispersal agents and appears more likely determined by other factors, such as flowering phenology, nutrient economy, and habitat preference. Thus, plant life-history, both directly and through its influence on fig placement, appears to have played a prominent role in determining fruit traits in these figs.
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DOI：
10.1016/j.actao.2011.01.005
发表时间：
2011-11-01
影响因子：
1.8
作者：
Corlett, Richard T.
通讯作者：
Corlett, Richard T.
影响因子：
1.4
作者：
Ichie, T;Kenta, T;Nakashizuka, T
通讯作者：
Nakashizuka, T
影响因子：
5.8
作者：
Jombart, Thibaut;Balloux, Francois;Dray, Stephane
通讯作者：
Dray, Stephane
影响因子：
4.8
作者：
Hao, Guang-You;Goldstein, Guillermo;Cao, Kun-Fang
通讯作者：
Cao, Kun-Fang
影响因子：
3.4
作者：
Harrison, RD;Yamamura, N
通讯作者：
Yamamura, N