Evolution of Catkins: Inflorescence Morphology of Selected Salicaceae in an Evolutionary and Developmental Context.
Evolution of Catkins: Inflorescence Morphology of Selected Salicaceae in an Evolutionary and Developmental Context.
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DOI：
10.3389/fpls.2015.01030
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发表时间：
2015
影响因子：
5.6
通讯作者：
Rudall PJ
中科院分区：
文献类型：
--
作者：
Cronk QC;Needham I;Rudall PJ
杨树（Populus sp.）和柳树（Salix sp.）是众所周知的木本植物，在整个北方都很常见，都有完整的基因组序列。他们承担紧凑的单性花序被称为“柔荑花序”。杨柳科中与“水杨科进化枝”密切相关的属包括亚洲属Bennettiodendron、Idesia、Itoa、Poliothyrsis和Carrierea以及中美洲属Olmediella和Macrohasseltia。像杨柳和白杨，这些属大多数是雌雄异株的，但不像杨柳和白杨，他们通常有松散的分枝圆锥花序，而不是柔荑花序，和不太高度退化的花。然而，早期发展的花序Carrierea和Idesia显示出相似的柔飞絮这表明可能的途径，其中柳柔飞絮可能已经演变。
Poplars (Populus sp.) and willows (Salix sp.) are well known woody plants common throughout the northern hemisphere, both with fully sequenced genomes. They bear compact unisexual inflorescences known as “catkins.” Closely related genera of the “salicoid clade” within the family Salicaceae include the Asian genera Bennettiodendron, Idesia, Itoa, Poliothyrsis, and Carrierea and the Central American genera Olmediella and Macrohasseltia. Like willow and poplar, most of these genera are dioecious, but unlike willow and poplar they generally have loosely branched panicles rather than catkins, and less highly reduced flowers. However, the early developing inflorescences of Carrierea and Idesia show similarities to catkins which suggest possible pathways by which the salicoid catkin may have evolved.