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Seed Ergastic Substances Profiling and its Implications for the Amaranthaceae Chenopodiaceae Complex

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Discussion
Systematics
Antoine Laurent de Jussieu in Genera Plantaru first published the family Amaranthaceae in 1789. The first publication of family Chenopodiaceae was in 17989/99 by Étienne Pierre Ventenat in Tableau du Regne Vegetal translation of the earlier Genera Plantaru [17]. Several works have discussed the closeness of the families Amaranthaceae and Chenopodiaceae. In previous studies, Amarantheceae was considered as a sister-group of Chenopodiaceae in the order Caryophyllales [18]. In the APG II system, of 2003, the Amaranthaceae family is placed in the order Caryophyllales. It includes the plants formerly treated as the family Chenopodiaceae [19]. The monophyly of this new, broadly defined Amaranthaceae is supported strongly by both morphological and phylogenetic analyses [11].
Despite the interest in the taxonomy and classification of the family Amaranthaceae, there is still need to study its phylogeny. The present study shows that a considerably level of similarity exists amongst the taxa (Figure 1 and 2). The genus Amaranthus (Amarathaceae) and the Chenopodiaceae genus Atriplex alongside C. hybridum correlated strongly with the first component of the PCA. The species Chenopodium botrys and Chenopodium polyspermum were most strongly correlated with the second component and form the most divergence group, forming an entirely Chenopodiaceae cluster. A third and middle group spreads between these extreme groups and shares members from both families; albeit a

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