Cat's Eyes and Popcorn Flowers: Phylogenetic Systematics of the Genus &lt;I&gt;Cryptantha&lt;/I&gt; s. l. (Boraginaceae)

Hasenstab-Lehman, Kristen; Simpson, Michael G.

doi:10.1600/036364412x648706

Cited by 45 publications

(52 citation statements)

References 38 publications

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“…Cryptantha-Hasenstab- Lehman & Simpson, 2012: "Although sampling is incomplete, this study generally supports the hypothesis of repeated unidirectional dispersal events, from North to South America" (p. 738).…”

Section: )supporting

confidence: 69%

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation¹

Graham

2015

Annals of the Missouri Botanical Garden

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Section: )supporting

confidence: 69%

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation¹

Graham

2015

Annals of the Missouri Botanical Garden

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“…5). The non-monophyly of Cryptantha has been reported in several studies (Hasenstab-Lehman & Simpson, 2012;Weigend & al., 2013;Ripma & al., 2014). On the basis of a phylogenetic analysis of the Cryptantha-clade that included 64 taxa from all recognized sections in Cryptantha s.l.…”

Section: Discussionmentioning

confidence: 67%

“…The Cryptantha-clade comprises several North and South American genera (Amsinckia, Cryptantha s.l. sensu Hasenstab-Lehman & Simpson, 2012, or Cryptantha sensu Johnston, 1925, 1927. In this latter clade, Amsinckia and Plagiobothrys are monophyletic and embedded in Cryptantha s.l.…”

Section: Discussionmentioning

confidence: 99%

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The borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some enigmatic genera

Chacón

Luebert

Hilger

et al. 2016

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103

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Boraginaceae s.str. is a subcosmopolitan family of 1600 to 1700 species in around 90 genera, and recent phylogenetic studies indicate that the infrafamilial classification as currently used is highly obsolete. The present study addresses the relationships of the major clades in Boraginaceae s.str. with an emphasis on monophyly of, and relationships between previously recognized clades and the position of various unplaced genera such as Afrotysonia, Anoplocaryum, Brachybotrys, Chionocharis, Craniospermum, Thyrocarpus, and Trigonocaryum using three plastid markers and a taxon sampling with four outgroup and 170 ingroup species from 73 genera. The phylogeny shows high statistical support for most nodes on the backbone and within individual clades. Echiochileae are confirmed as sister to the remainder of Boraginaceae s.str., which, in turn, fall into two well‐supported clades, the Boragineae + Lithospermeae and the Cynoglosseae s.l. The latter is highly resolved and includes the Lasiocaryum‐clade (Chionocharis, Lasiocaryum, Microcaryum) and the Trichodesmeae (Caccinia, Trichodesma) as sister to the remainder of the group. Rochelieae (formerly the Eritrichieae s.str., also including Eritrichium, Hackelia, and Lappula) form a poorly supported polytomy together with the Mertensia‐clade (also including Anoplocaryum, Asperugo, and Memoremea) and the Omphalodes‐clade. The enigmatic genus Craniospermum (Craniospermeae) is sister to an expanded Myosotideae (also including Brachybotrys, Decalepidanthus, Trigonocaryum, and Trigonotis) and these two clades are in turn sister to the Core‐Cynoglosseae, in which Afrotysonia glochidiata and Thyrocarpus sampsonii are included. Core‐Cynoglosseae again fall into two pairs of well‐supported subclades. The majority of generic placements are now resolved satisfactorily and the remaining phylogenetic questions can be clearly delimited. Based on the extensive phylogenetic data now available we propose a new infrafamilial classification into three subfamilies and 11 tribes, representing a consensus among the participating authors, according to which major clades are renamed.

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“…Most Boraginaceae species are biotically dispersed and epizoochory is probably the single most important mechanism, especially in the Cynoglossoideae, which have glochidiate nutlets that can easily attach to the feathers and fur of animals (Selvi et al, 2011;Weigend et al, 2016). Some further examples of epizoochory are found in the genera Lappula (Ridley, 1930) and Cryptantha, the latter possessing small nutlets and rough sculpturing, which are easily detached from the plant (Carlquist, 1983;Grau, 1983;Hasenstab-Lehman and Simpson, 2012). Endozoochory is typical in Lithospermum L., whose stone-like nutlets are swallowed by granivorous birds, passing intact through their guts and germinating successfully later on (Van der Pijl, 1982;Best and Smartt, 1986;Bricker et al, 2010;Selvi et al, 2011;Weigend et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Biogeographic Events Are Not Correlated with Diaspore Dispersal Modes in Boraginaceae

2017

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Long-distance dispersal seems to be the main biogeographic event responsible for intriguing distribution patterns in plant groups in which sister taxa are separated by thousands of kilometers of distance across oceans and continents. The biotic and abiotic mechanisms behind such dispersal events are poorly understood and many attempts have been made to explain how plants can manage to disperse and survive these long journeys. The biogeographic history of Boraginaceae, a subcosmopolitan plant family with many disjunct clades, is here addressed and analyzed in the context of the different dispersal modes exhibited by the species. The lack of a clear pattern between the main dispersal events in Boraginaceae and the phylogenetic distribution of the dispersal modes indicates that no single dispersal mechanism can be associated with the events of dispersal in the family. Moreover, adaptations to different dispersal agents and unassisted dispersal modes in some clades might have promoted the diversification of Boraginaceae in various habitats across several continents. Our study reveals that long-distance dispersal is a very complex process that needs to be analyzed in the context of climatic and environmental changes and the response of plants and their dispersal vectors to these variable conditions.

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Cat's Eyes and Popcorn Flowers: Phylogenetic Systematics of the Genus <I>Cryptantha</I> s. l. (Boraginaceae)

Cited by 45 publications

References 38 publications

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation¹

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation¹

The borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some enigmatic genera

Biogeographic Events Are Not Correlated with Diaspore Dispersal Modes in Boraginaceae

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Cat's Eyes and Popcorn Flowers: Phylogenetic Systematics of the Genus <I>Cryptantha</I> s. l. (Boraginaceae)

Cited by 45 publications

References 38 publications

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation1

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation1

The borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some enigmatic genera

Biogeographic Events Are Not Correlated with Diaspore Dispersal Modes in Boraginaceae

Contact Info

Product

Resources

About

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation¹

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation¹