Detailed Seed Cone Morpho-Anatomy Provides New Insights into Seed Cone Origin and Evolution of Podocarpaceae; Podocarpoid and Dacrydioid Clades

doi:10.3390/plants12223903

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	Detailed Seed Cone Morpho-Anatomy Provides New Insights into Seed Cone Origin and Evolution of Podocarpaceae; Podocarpoid and Dacrydioid Clades
	Khan,Raees; Hill,Robert S.; Doerken,Veit M.; Biffin,Ed
	2023
发表期刊	PLANTS-BASEL
ISSN	2223-7747
卷号	12 期号:22 页码:3903
摘要	The study of reproductive morphology and trait evolution provides a vital insight to understand the evolutionary history of plants. The conifer family Podocarpaceae has a remarkable diversity of seed cones, with distinct morphology among the genera and with conifers in general. However, we lack a good understanding of the seed cone morpho-anatomy and trait evolution of Podocarpaceae. We investigated detailed seed cone morpho-anatomy using staining and sectioning techniques to clarify the anatomical, morphological diversity and evolution of functional traits. The presence of a fleshy receptaculum is a characteristic feature of both clades. However, species of Retrophyllum, Afrocarpus and some species of Nageia and Podocarpus form a fleshy sarcotesta-like seed coat, lacking a fleshy receptaculum. The ancestral state reconstructions show a shift between and sometimes within the genus. Although both clades demonstrate fleshiness as an ancestral trait, the shift in fleshy structures provides evidence for complex multiple evolutions of fleshy morphologies. These seed cone traits (e.g., fleshiness and size), along with the broad, flattened and well-adapted (leaf dimorphism) foliage in both clades, are largely congruent with efficient light harvesting and bird dispersal. These traits make these two clades well adapted to their environment, when growing in communities including tall and broad-leaved angiosperms (closed-canopy angiosperm forests), compared to other podocarps, making them more successful in achieving a wider distribution and species richness.
关键词	conifers developmental biology dispersal evolution fossils leaf dimorphism paleobotany DACRYCARPUS-DACRYDIOIDES CONIFERS DISPERSAL FOREST PREFERENCES CUPRESSINUM BIRDS
DOI	10.3390/plants12223903
WOS记录号	WOS:001114221600001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/75054
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Khan,Raees,Hill,Robert S.,Doerken,Veit M.,et al. Detailed Seed Cone Morpho-Anatomy Provides New Insights into Seed Cone Origin and Evolution of Podocarpaceae; Podocarpoid and Dacrydioid Clades[J]. PLANTS-BASEL,2023,12(22):3903.
APA	Khan,Raees,Hill,Robert S.,Doerken,Veit M.,&Biffin,Ed.(2023).Detailed Seed Cone Morpho-Anatomy Provides New Insights into Seed Cone Origin and Evolution of Podocarpaceae; Podocarpoid and Dacrydioid Clades.PLANTS-BASEL,12(22),3903.
MLA	Khan,Raees,et al."Detailed Seed Cone Morpho-Anatomy Provides New Insights into Seed Cone Origin and Evolution of Podocarpaceae; Podocarpoid and Dacrydioid Clades".PLANTS-BASEL 12.22(2023):3903.

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