Evolutionary relationships, hybridization and diversification under domestication of the locoto chile () and its wild relatives.

Patterns of genetic variation in crops are the result of multiple processes that have occurred during their domestication and improvement, and are influenced by their wild progenitors that often remain understudied. The locoto chile, , is a crop grown mainly in mid-highlands of South-Central America. This species is not known from the wild and exists only as a cultigen.

Monograph of wild and cultivated chili peppers ( L., Solanaceae).

L. (tribe Capsiceae, Solanaceae) is an American genus distributed ranging from the southern United States of America to central Argentina and Brazil. The genus includes chili peppers, bell peppers, ajíes, habaneros, jalapeños, ulupicas and pimientos, well known for their economic importance around the globe.

Geographical Patterns of Genetic Variation in Locoto Chile () in the Americas Inferred by Genome-Wide Data Analysis.

The locoto chile () is a regionally important food crop grown and marketed throughout the mid-highlands of South andCentral America, but little is known about its evolution and the diversity it harbours. An initial scan of genetic diversity and structure across its cultivation range was conducted, the first one using a genomic approach. The RAD-sequencing methodology was applied to a sampling of germplasm consisting of 67 accessions from different American countries, covering its range of distribution/cultivation on the continent.

Diversification of chiles (, Solanaceae) through time and space: New insights from genome-wide RAD-seq data.

L. encompasses 43 American species, including the five domesticated worldwide consumed sweet and hot chiles. This study presents new, updated and age-calibrated phylogenetic hypothesis on the genus evolution incorporating nearly all currently accepted species.

An amazing new (Solanaceae) species from the Andean-Amazonian Piedmont.

Barboza & Bohs, , a new species from the tropical wet forests of the eastern Andean slopes (Colombia, Ecuador, and Peru) is described and illustrated. This new species belongs to the Andean clade (all species 2n = 26) of and is similar to Barboza & S.Leiva in its glabrescence, calyx morphology, and corolla and seed color but differs in its membranous and elliptic leaves, fleshy calyces, deeper stellate corollas, longer filaments, longer and purple fruiting pedicels, purple berries, and larger seeds.

Four new species of Capsicum (Solanaceae) from the tropical Andes and an update on the phylogeny of the genus.

Four new species of Capsicum (Capsiceae, Solanaceae) from Andean tropical forests in South America are described. Capsicum benoistii Hunz. ex Barboza sp.

Phylogenetic relationships of Deprea: New insights into the evolutionary history of physaloid groups.

Deprea is the genus with the second highest species richness in tribe Physalideae (Solanaceae) and comprises 50 species that are mainly distributed in the Andes of South America. The taxonomy of Deprea has been unstable after controversial hypotheses about its position and circumscription. Additionally, biogeographical inferences are only based on observations of the restricted area of distribution of some species and no ancestral area estimation have been performed.

Phylogenetic relationships, diversification and expansion of chili peppers (Capsicum, Solanaceae).

Background And Aims: Capsicum (Solanaceae), native to the tropical and temperate Americas, comprises the well-known sweet and hot chili peppers and several wild species. So far, only partial taxonomic and phylogenetic analyses have been done for the genus. Here, the phylogenetic relationships between nearly all taxa of Capsicum were explored to test the monophyly of the genus and to obtain a better knowledge of species relationships, diversification and expansion.

It is a matter of timing: asynchrony during pollen development and its consequences on pollen performance in angiosperms-a review.

Functional pollen is needed to successfully complete fertilization. Pollen is formed inside the anthers following a specific sequence of developmental stages, from microsporocyte meiosis to pollen release, that concerns microsporocytes/microspores and anther wall tissues. The processes involved may not be synchronous within a flower, an anther, and even a microsporangium.

Structural aspects and ecophysiology of anther opening in Allium triquetrum.

Background And Aims: Tissue desiccation is considered to be involved in anther opening, and it is agreed that environmental humidity affects its timing. Different sources of evidence suggest that the later steps of the process (i.e.

Anther wall formation in Solanaceae species.

Anther wall formation was studied in 32 species belonging to 27 genera of Solanaceae. Dicotyledonous and basic types of wall formation were observed, as well as several deviations due to subsequent periclinal divisions in the layers formed (middle layers and sometimes the endothecium). One type of wall formation was observed in each species.