e-journal

Population structure of Cynara cardunculus complex and the origin of the conspecific crops artichoke and cardoon

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† Background and Aims:
Globe artichoke and leafy cardoon, two crops within the same species Cynara cardunculus, are traditionally cultivated in the Mediterranean region and play a significant role in the agricultural economy of this
area. The two cultigens have different reproductive systems: artichoke is generally vegetatively propagated, while leafy cardoon is seed propagated. The domestication events underlying the origin of both artichoke and cultivated cardoon from their wild relative and the area of occurrence are not yet fully understood. The aim of this study was to investigate population structure in wild cardoon, globe artichoke and leafy cardoon material and infer domestication events.

† Methods:
Thirty-five microsatellite (simple sequence repeat) markers, distributed in the C. cardunculus genome,
and a large geographical and numerical sampling in southern Europe and North Africawere used to assess population structure and diversity.

† Key Results:
The results suggest the presence of two distinct domestication events for artichoke and leafy cardoon,
and also suggest a new possible scenario, with western wild cardoon having originated from cultivated cardoon
escaped from cultivation. Evidence was found for a demographic bottleneck in the past history of globe artichoke.

†Conclusions:
The results shed newlight on the relationships between the three taxa of C. cardunculus and highlight
relevant aspects on the evolution of domestication of two crops with a different reproductive system within the same species. It is proposed that the probable centre of origin of artichoke is located in southern Italy, probably Sicily.

Key words: Cynara cardunculus, SSR markers, population structure, multiple domestication events, clonal
propagation, bottleneck, reproductive system.

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Informasi Detail

Judul Seri

Annals of Botany

No. Panggil

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Penerbit

Oxford : Oxford University Press on behalf of the Annals of Botany Company., 2013

Deskripsi Fisik

Annals of Botany 112: 855–865, 2013

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

112: 2013

Subjek

EKOLOGI TANAMAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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