The floral morphospace--a modern comparative approach to study angiosperm evolution.
The floral morphospace--a modern comparative approach to study angiosperm evolution.
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DOI:
10.1111/nph.12969
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发表时间:
2014-12
期刊:
影响因子:
--
通讯作者:
Schönenberger J
中科院分区:
文献类型:
--
作者:
Chartier M;Jabbour F;Gerber S;Mitteroecker P;Sauquet H;von Balthazar M;Staedler Y;Crane PR;Schönenberger J
Morphospaces are mathematical representations used for studying the evolution of morphological diversity and for the evaluation of evolved shapes among theoretically possible ones. Although widely used in zoology, they – with few exceptions – have been disregarded in plant science and in particular in the study of broad-scale patterns of floral structure and evolution. Here we provide basic information on the morphospace approach; we review earlier morphospace applications in plant science; and as a practical example, we construct and analyze a floral morphospace. Morphospaces are usually visualized with the help of ordination methods such as principal component analysis (PCA) or nonmetric multidimensional scaling (NMDS). The results of these analyses are then coupled with disparity indices that describe the spread of taxa in the space. We discuss these methods and apply modern statistical tools to the first and only angiosperm-wide floral morphospace published by Stebbins in 1951. Despite the incompleteness of Stebbins’ original dataset, our analyses highlight major, angiosperm-wide trends in the diversity of flower morphology and thereby demonstrate the power of this previously neglected approach in plant science.
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发表时间:
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