ArticleAnnals of botany2006
Evidence of natural hybridization and introgression between Vasconcellea species (Caricaceae) from southern Ecuador revealed by chloroplast, mitochondrial and nuclear DNA markers.
Article in Annals of botany, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
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- The Virome of Babaco (Viruses · 2023Article
- Comparative and phylogenetic analyses of the chloroplast genome reveal the taxonomy of theFrontiers in plant science · 2022Article
- An integrative approach reveals five new species of highland papayas (Caricaceae, Vasconcellea) from northern Peru.PloS one · 2020Article
- Article
- Unidirectional hybridization and reproductive barriers between two heterostylous primrose species in north-west Yunnan, China.Annals of botany · 2014Article
- Extreme multiple reticulate origins of the Pteris cadieri complex (Pteridaceae).International journal of molecular sciences · 2012Article
- Cyto-nuclear discordance in the phylogeny of Ficus section Galoglychia and host shifts in plant-pollinator associations.BMC evolutionary biology · 2009Article
- Hybridization between two polyploid Cardamine (Brassicaceae) species in North-western Spain: discordance between morphological and genetic variation patterns.Annals of botany · 2007Article
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7 authors.
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Abstract
BACKGROUND AND
aimsVasconcellea x heilbornii is believed to be of natural hybrid origin between V. cundinamarcensis and V. stipulata, and is often difficult to discriminate from V. stipulata on morphological grounds. The aim of this paper is to examine individuals of these three taxa and of individuals from the closely related species V. parviflora and V. weberbaueri, which all inhabit a hybrid zone in southern Ecuador.
methodsMolecular data from mitochondrial, chloroplast and nuclear DNA from 61 individuals were analysed. KEY
resultsMolecular analysis confirmed occasional contemporary hybridization between V. stipulata, V. cundinamarcensis and V. x heilbornii and suggested the possible involvement of V. weberbaueri in the origin of V. x heilbornii. In addition, the molecular data indicated unidirectional introgression of the V. cundinamarcensis nuclear genome into that of V. stipulata. Several of the individuals examined with morphology similar to that of V. stipulata had genetic traces of hybridization with V. cundinamarcensis, which only seems to act as pollen donor in interspecific hybridization events. Molecular analyses also strongly suggested that most of the V. x heilbornii individuals are not F(1) hybrids but instead are progeny of repeated backcrosses with V. stipulata.
conclusionsThe results of the present study point to the need for re-evaluation of natural populations of V. stipulata and V. x heilbornii. In general, this analysis demonstrates the complex patterns of genetic and morphological diversity found in natural plant hybrid zones.
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