The classification of the Compositae: A tribute to Vicki Ann Funk (1947–2019)

Susanna, Alfonso; Baldwin, Bruce G.; Bayer, Randall J.; Bonifacino, José Maurício; Garcia‐Jacas, Núria; Keeley, Sterling C.; Mandel, Jennifer R.; Ortiz, Santiago; Robinson, Harold; Stuessy, Tod F.

doi:10.1002/tax.12235

Cited by 37 publications

(19 citation statements)

References 8 publications

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“…The varying phylogenetic relationships we recovered are representative of the issues routinely found during phylogenetic studies in the sunflower family. From the eight sampled species, six belong to the subfamily Asteroideae, which includes >60% of the species diversity of the family (Susanna et al, 2020). Relationships among groups of tribes in this subfamily have been notoriously difficult to resolve, such as the tribes within the Heliantheae alliance and the group informally named Fab5 (Anthemideae, Astereae, Calenduleae, Gnaphalieae, and Senecioneae), as seen in multiple Compositae phylogenetic studies (Pelser and Watson, 2009; Huang et al, 2016; Panero and Crozier, 2016; Mandel et al, 2019; Watson et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Lineage‐specific vs. universal: A comparison of the Compositae1061 and Angiosperms353 enrichment panels in the sunflower family

et al. 2021

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In the past decade, the use of high-throughput sequencing in plant systematics, more specifically Illumina-based short-read sequencing, has changed from being a potentially revolutionary technique to a relatively commonplace approach (Delseni et al., 2010;McKain et al., 2018). While earlier studies relied on genome skimming to obtain organellar (i.e., plastid, mitochondrial, ribosomal) and high-copy-number nuclear markers (Godden et al., 2012;Straub et al., 2012), it soon became clear that for plant systematics, sequencing methods that isolate specific sets of low-copy-number nuclear genomic regions would be more powerful. The first reports of the use of array-free probes for multiplexed in-solution capture and sequencing using high-throughput sequencing platforms were

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Section: Discussionmentioning

confidence: 99%

Lineage‐specific vs. universal: A comparison of the Compositae1061 and Angiosperms353 enrichment panels in the sunflower family

et al. 2021

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“…The most recent classification of Asteraceae for subfamilies and tribes is used in Appendix A [ 28 ]. The names of some genera and species are based on specialist reviews and criteria, for example, Ageratina [ 13 , 97 ], Critoniopsis [ 98 ], and Pachythamnus [ 99 ].…”

Section: Methodsmentioning

confidence: 99%

Towards Conservation of the Remarkably High Number of Daisy Trees (Asteraceae) in Mexico

Redonda-Martínez

Moreira-Muñoz

Salas

et al. 2021

Plants

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Mexico is floristically the fourth most species-rich country in the world, and Asteraceae is the most diverse vascular plant family in this country. The species exhibits a wide range of growth forms, but the tree-like habit, appropriately named daisy trees, is heavily underestimated, even though slightly different tree definitions are handled. Very little is known about their precise species number or conservation status in Mexico, so we update here the list of known Mexican daisy tree species, summarize their very diverse uses, present a general panorama of their present and future distribution, and discuss their conservation status. A bibliographic review and herbarium study were carried out, carefully curated taxonomical ocurrence maps were prepared for each species, and a climatic suitability modelling approach was used to characterise the spatial patterns of Mexican Asteraceae trees. With 149 daisy tree species, the country ranks second at a global level; within the country, their greatest diversity is found in central and western Mexico. A decrease in diversity is estimated in areas that currently host the highest species richness, whereas the hotspot regions are estimated to show an increase in species diversity, so climate change is not a threat to all Mexican daisy tree species.

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“…The origin of Compositae is stated to be ~83 million years ago during the Cretaceous followed by a series of radiations and hybridizations in the Mid‐Eocene (Mandel et al, 2019). This family is further subdivided into 12 subfamilies and 43 tribes (Susanna et al, 2020). Members of this family exhibit all life forms herbs, shrubs, trees, and lianas (Mori, Hecklau, & Kirchgessner, 2002).…”

Section: Introductionmentioning

confidence: 99%

Cypsela diversity in some members of Compositae through LM study and its taxonomic significance

Sikder

Moktan

2021

Microscopy Res & Technique

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Compositae (Asteraceae), also known as the sunflower family has evolved to become the most diverse and advanced angiosperm family. However, with high diversity, taxonomic complexities also arise at several levels. A reliable tool in resolving such taxonomic conundrums in this family is the characteristic fruit of Compositae known as “cypsela.” While most of the previous cypsela‐based studies have focused on specific tribes and species of Compositae, in this study, we shift our focus to the genus level and seek a broader understanding of the taxonomic relationships that prevail in this family. In order to achieve this, we sampled 25 genera of Compositae and subjected them to qualitative and quantitative analysis to resolve them into groups based on the degree of similarity. This study was conducted by employing light microscopy techniques for gathering the qualitative and quantitative morphological data of the cypselae. The qualitative data were collected on six key morphological characteristics—shape, color, base, surface ornamentation, ribs, and pappus types for all the members. These data were used to yield an artificial dichotomous key to genera for the 25 members. The quantitative data on dimensions (length, breadth) of the entire cypsela as well as the pappus and ribs were subjected to principal component analysis, to understand the covariance among these variables. Hierarchical clustering followed by dendrogram construction was used to visualize the patterns of correlation within the samples and make taxonomic conclusions. The resulting dendrogram showed four closely related clades that consisted of 23 out of the 25 members whereas 2 members emerged as outgroups. The results of this study commensurate with DNA‐based resolution of the concerned Compositae members, hence highlighting the reliability and significance of both light microscopy and morphology‐based studies that seem to be fading away otherwise.

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The classification of the Compositae: A tribute to Vicki Ann Funk (1947–2019)

Cited by 37 publications

References 8 publications

Lineage‐specific vs. universal: A comparison of the Compositae1061 and Angiosperms353 enrichment panels in the sunflower family

Lineage‐specific vs. universal: A comparison of the Compositae1061 and Angiosperms353 enrichment panels in the sunflower family

Towards Conservation of the Remarkably High Number of Daisy Trees (Asteraceae) in Mexico

Cypsela diversity in some members of Compositae through LM study and its taxonomic significance

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