Shedding new light on the origin and spread of the brinjal eggplant (Solanum melongena L.; Solanaceae) and its wild relatives

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Aubriot , X , Knapp , S , Syfert , M , Poczai , P & Buerki , S 2018 , ' Shedding new light on the origin and spread of the brinjal eggplant (Solanum melongena L.; Solanaceae) and its wild relatives ' , American Journal of Botany , vol. 105 , no. 7 , pp. 1175-1187 . https://doi.org/10.1002/ajb2.1133

Title: Shedding new light on the origin and spread of the brinjal eggplant (Solanum melongena L.; Solanaceae) and its wild relatives
Author: Aubriot, Xavier; Knapp, Sandra; Syfert, Mindy; Poczai, Péter; Buerki, Sven
Contributor organization: Finnish Museum of Natural History
Embryophylo
Date: 2018-07
Language: eng
Number of pages: 13
Belongs to series: American Journal of Botany
ISSN: 0002-9122
DOI: https://doi.org/10.1002/ajb2.1133
URI: http://hdl.handle.net/10138/241064
Abstract: • While brinjal eggplant (Solanum melongena L.) is the second most important solanaceaous vegetable crop, we lack firm knowledge of its evolutionary relationships. This in turn limits efficient use of crop wild relatives in eggplant improvement. Here, we examine the hypothesis of linear step-wise expansion of the eggplant group from Africa to Asia. • We use museum collections to generate nuclear and full-plastome data for all species of the eggplant clade. We combine a phylogenomic approach with distribution data to infer a biogeographic scenario for the clade. • The eggplant clade has Pleistocene origins in northern Africa. Dispersions to tropical Asia gave rise to Solanum insanum, the wild progenitor of the eggplant, and to Africa distinct lineages of widespread and southern-African species. Results suggest that spread of species to southern Africa is recent and was likely facilitated by large mammal herbivores feeding on Solanum fruits (African elephant, impala). • Rather than a linear ‘Out Of Africa’ sequence, our results are more consistent with an initial event into Asia, and subsequent wide dispersion and differentiation across Africa driven by large mammalian herbivores. Our evolutionary results will impact future work on eggplant domestication and use of wild relatives in breeding of this increasingly important solanaceous crop.
Subject: 1181 Ecology, evolutionary biology
biogeography
chloroplast genome
crop wild relatives (CWRs)
dispersal
eggplant (aubergine)
mammalian herbivores
molecular dating
phylogenomics
Solanaceae
VEGETATION CHANGE
SOUTHERN INDIA
SEQUENCE DATA
CROP
INFERENCE
AFRICA
LEPTOSTEMONUM
HYBRIDIZATION
DOMESTICATION
biogeography
chloroplast genome
crop wild relatives (CWRs)
dispersal
eggplant (aubergine)
mammalian herbivores
molecular dating
phylogenomics
Solanaceae
VEGETATION CHANGE
SOUTHERN INDIA
SEQUENCE DATA
CROP
SOLANACEAE
INFERENCE
AFRICA
LEPTOSTEMONUM
HYBRIDIZATION
DOMESTICATION
Peer reviewed: Yes
Rights: unspecified
Usage restriction: openAccess
Self-archived version: acceptedVersion
Funder: Itä-Suomen yliopisto
Jyväskylän yliopisto
Uudenmaan liitto
Jyväskylän yliopisto
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