The unusualOndinea, actually just another Australian water-lily ofNymphaeasubg.Anecphya (Nymphaeaceae)

Löhne, Cornelia; Wiersema, John H.; Borsch, Thomas

doi:10.3372/wi.39.39104

Cited by 23 publications

(19 citation statements)

References 15 publications

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“…Complex reticulate evolutionary patterns were involved in the genesis of the approximately 10-16 species of Anecphya (Löhne et al 2008a), many of which were described only recently (Jacobs & Porter 2007;Jacobs & Hellquist 2006;Jacobs & Hellquist 2011, this issue). Morphology and molecules agree on the finding that the monotypic genus Ondinea diverged rather recently from ancestors within Anecphya , Löhne et al 2009), pointing at rapid changes in floral architecture as well as organ number, probably as a consequence of changes in life form (submerged aquatic in temporal streams). Therefore, Löhne et al (2009) transferred Ondinea purpurea, including its two subspecies, to Nymphaea.…”

Section: Introductionsupporting

confidence: 77%

“…Morphology and molecules agree on the finding that the monotypic genus Ondinea diverged rather recently from ancestors within Anecphya , Löhne et al 2009), pointing at rapid changes in floral architecture as well as organ number, probably as a consequence of changes in life form (submerged aquatic in temporal streams). Therefore, Löhne et al (2009) transferred Ondinea purpurea, including its two subspecies, to Nymphaea.…”

Section: Introductionsupporting

confidence: 77%

“…This allows a determination of all lineages and, through genomic incongruence, also of areas of the tree where hybridisation led to reticulate origin of species. Hybrid speciation in conjunction with allopolyploidisation is evident within Nymphaea subgenera Anecphya (Löhne et al 2009) and Nymphaea (Volkova et al 2010). Representation of individuals from throughout the range of species is necessary to detect geographical differentiation within monophyletic species, as evident in the widespread North American Nymphaea odorata (Woods et al 2005), and incomplete lineage sorting.…”

Section: Introductionmentioning

confidence: 99%

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Towards a complete species tree of Nymphaea: shedding further light on subg. Brachyceras and its relationships to the Australian water-lilies

Borsch¹,

Löhne²,

Mbaye³

et al. 2011

Telopea

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The water-lily genus Nymphaea exhibits a worldwide distribution with an estimated number of more than 50 extant species. Recent phylogenetic analyses resolved three major lineages, a subg. Brachyceras-subg. Anecphya clade, also including Nymphaea ondinea, a subg. Hydrocallis-subg. Lotos clade, and the temperate subg. Nymphaea as a third clade. This study extends the taxon sampling for Brachyceras, previously the least understood subgenus. Maximum Parsimony and Bayesian analysis of nrITS sequence data depict a monophyletic subg. Brachyceras-clade and show a New World clade to be nested within African taxa. Plastid trnT-trnF sequence data are less conclusive. A middle Miocene origin is inferred for the New World Brachyceras lineage that must have dispersed out of Africa either via a Beringian migrational route or through immediate long distance dispersal. Within subg. Brachyceras, the West African individuals of Nymphaea guineensis form a distinct clade in both nuclear and plastid trees to which the Madagascan Nymphaea minuta is sister. Central and East African Brachyceras species appear well separated, suggesting a separating effect of the Dahomey gap to the evolution of these species. ITS sequences are more powerful in identifying Nymphaea species than trnT-trnF sequences. Nevertheless, about 15% of the known species remain to be sampled for a complete molecular tree of water-lilies. This also requires sampling of multiple populations in order to discover entities with a common evolutionary history and distinct molecular and morphological characters.

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Section: Introductionsupporting

confidence: 77%

Section: Introductionsupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

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Towards a complete species tree of Nymphaea: shedding further light on subg. Brachyceras and its relationships to the Australian water-lilies

Borsch¹,

Löhne²,

Mbaye³

et al. 2011

Telopea

Self Cite

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“…Recent molecular analyses have indicated that the former Ondinea purpurea den Hartog is nested within Nymphaea subgenus Anecypha (Borsch et al, 2007, 2011; Löhne et al, 2008, 2009). Löhne et al (2009) published a taxonomic revision, proposing the new name Nymphaea ondinea Löhne, Wiersema & Borsch.…”

Section: Resultsmentioning

confidence: 99%

Pollen structure and development in Nymphaeales: Insights into character evolution in an ancient angiosperm lineage

Taylor

Cooper

Schneider

et al. 2015

American J of Botany

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“…/Victoria Lindl. (Löhne, Borsch & Wiersema, 2007, 2009; Borsch, Löhne & Wiersema, 2008). Nymphaea plus these three genera have been referred to as core Nymphaeaceae (Borsch et al ., 2008).…”

Section: Introductionmentioning

confidence: 99%

Pollen tube growth and the pollen-tube pathway of Nymphaea odorata (Nymphaeaceae)

Williams

Mcneilage

Lettre

et al. 2010

Botanical Journal of the Linnean Society

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An important aspect of the evolution of carpel closure, or angiospermy, is the relationship between pollen tube growth patterns and internalization of the pollen‐tube pathway. True carpel closure, involving postgenital fusion of inner carpel margins, is inferred to have arisen once within the ancient order Nymphaeales, in the common ancestor of Nymphaeaceae. We studied pollen tube development, from pollination to fertilization, in a natural population of Nymphaea odorata, using hand pollinations and timed flower collections. Pollen germinates in stigmatic secretions within 15 min and pollen tubes enter subdermal transmitting tissue within an hour, following wide intercellular spaces towards the zone of postgenital fusion. At the zone of fusion they turn downwards to grow in narrow spaces between interlocked cells and then wander freely to ovules within ovarian secretions. The pollen‐tube pathway is 2–6 mm long and upper ovules are first penetrated 2.5 h after pollination. Pollen tubes grow at rates of approximately 1 mm/h whether in stigmatic fluid, transmitting tissues or ovarian secretions. Pollen‐tube pathways are structurally diverse across Nymphaeales, yet their pollen tubes have similar morphologies and rapid growth rates. This pattern suggests pollen tube growth innovations preceded and were essential for the evolution of complete carpel closure. © 2010 The Linnean Society of London, Botanical Journal of the Linnean Society, 2010, 162, 581–593.

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The unusualOndinea, actually just another Australian water-lily ofNymphaeasubg.Anecphya (Nymphaeaceae)

Cited by 23 publications

References 15 publications

Towards a complete species tree of Nymphaea: shedding further light on subg. Brachyceras and its relationships to the Australian water-lilies

Towards a complete species tree of Nymphaea: shedding further light on subg. Brachyceras and its relationships to the Australian water-lilies

Pollen structure and development in Nymphaeales: Insights into character evolution in an ancient angiosperm lineage

Pollen tube growth and the pollen-tube pathway of Nymphaea odorata (Nymphaeaceae)

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