Convergent evolution at the gametophytic self-incompatibility system in Malus and Prunus.
Convergent evolution at the gametophytic self-incompatibility system in Malus and Prunus.
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DOI：
10.1371/journal.pone.0126138
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Vieira CP
中科院分区：
文献类型：
--
作者：
Aguiar B;Vieira J;Cunha AE;Fonseca NA;Iezzoni A;van Nocker S;Vieira CP
S-RNase为基础的配子体自交不亲和性（GSI）在菊科和蔷薇科的分裂之前已经进化过一次。这一结论是基于决定雌蕊特异性的S-RNase的系统发育历史。在蔷薇科中，李属物种和来自梨族的物种（即，Malus，Pyrus，Sorbus）揭示了决定S-花粉特异性的不同数量的基因。在李属中，只有一个雌蕊和花粉基因决定GSI，而在梨属中，有一个雌蕊和多个花粉基因，这意味着不同的特异性识别机制。因此可以想象，在蔷薇科中，两个谱系中涉及GSI的基因不是直系同源的，而是可能是旁系同源的。为了解决这一假设，我们的特点是S-核糖核酸酶谱系和S-花粉谱系基因存在于五个蔷薇科物种的基因组中，来自三个属：M。× apartica（苹果，自交不亲和（SI）;梨族）、桃（桃，自交亲和（SC）;扁桃族）、梅（梅，SI;扁桃族）、野草莓（Fragaria vesca）（草莓，SC; Potentillae）和F. nipponica（mori-ichigo，SI;委陵菜族）。系统发育分析表明，苹果属和李属S-RNase和S-花粉基因属于不同的基因谱系，只有李属S-RNase和SFB谱系基因存在于草莓属中。因此，苹果属植物基于S-RNase的GSI系统独立于蔷薇科植物的祖先系统进化而来。使用基于RNA-seq数据的表达模式，推测祖先S-RNase谱系基因仅在雌蕊中表达，而推测祖先S-花粉谱系基因在花粉以外的组织中表达。
S-RNase-based gametophytic self-incompatibility (GSI) has evolved once before the split of the Asteridae and Rosidae. This conclusion is based on the phylogenetic history of the S-RNase that determines pistil specificity. In Rosaceae, molecular characterizations of Prunus species, and species from the tribe Pyreae (i.e., Malus, Pyrus, Sorbus) revealed different numbers of genes determining S-pollen specificity. In Prunus only one pistil and pollen gene determine GSI, while in Pyreae there is one pistil but multiple pollen genes, implying different specificity recognition mechanisms. It is thus conceivable that within Rosaceae the genes involved in GSI in the two lineages are not orthologous but possibly paralogous. To address this hypothesis we characterised the S-RNase lineage and S-pollen lineage genes present in the genomes of five Rosaceae species from three genera: M. × domestica (apple, self-incompatible (SI); tribe Pyreae), P. persica (peach, self-compatible (SC); Amygdaleae), P. mume (mei, SI; Amygdaleae), Fragaria vesca (strawberry, SC; Potentilleae), and F. nipponica (mori-ichigo, SI; Potentilleae). Phylogenetic analyses revealed that the Malus and Prunus S-RNase and S-pollen genes belong to distinct gene lineages, and that only Prunus S-RNase and SFB-lineage genes are present in Fragaria. Thus, S-RNase based GSI system of Malus evolved independently from the ancestral system of Rosaceae. Using expression patterns based on RNA-seq data, the ancestral S-RNase lineage gene is inferred to be expressed in pistils only, while the ancestral S-pollen lineage gene is inferred to be expressed in tissues other than pollen.
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影响因子：
6.9
作者：
Aguiar B;Vieira J;Cunha AE;Fonseca NA;Reboiro-Jato D;Reboiro-Jato M;Fdez-Riverola F;Raspé O;Vieira CP
通讯作者：
Vieira CP
影响因子：
5.1
作者：
BROOTHAERTS, W;JANSSENS, GA;BROEKAERT, WF
通讯作者：
BROEKAERT, WF
影响因子：
3.3
作者：
Herman, Adam C.;Busch, Jeremiah W.;Schoen, Daniel J.
通讯作者：
Schoen, Daniel J.
影响因子：
11.6
作者：
Hua, Zhihua;Kao, Teh-hui
通讯作者：
Kao, Teh-hui
影响因子：
4.4
作者：
Chagne, David;Gasic, Ksenija;Korban, Schuyler S.
通讯作者：
Korban, Schuyler S.