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preliminary study of the genetic diversity of Bolivian oca (Oxalis tuberosa Mol.) varieties maintained in situ and ex situ through the utilization of ISSR molecular markers  [2007]

Malice, Marie Martin, Nicolas Pissard, Audrey Rojas-Beltran, Jorge A. et al.

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Abstract
ISSR molecular markers have been used to investigate genetic diversity of oca (Oxalis tuberosa Mol.), an Andean neglected tuber crop species. Sampling procedure allowed a preliminary study of the genetic diversity at the intra- and intervarietal levels. Twenty tuber lots conserved in situ in the microcentre of Candelaria and ex situ in the Toralapa Centre (Bolivia) were identified. Four ISSR primers amplified a total of 25 fragments of which 17 (68%) were polymorphic. These experiments show that the structure of oca varieties is mainly based upon vernacular names with a greater differentiation among tuber lots than within them, supporting agromorphological data. ISSR technique enlightened the existence of heterogeneous varieties in oca and divergence between in situ and ex situ conservation strategies. These observations are potentially linked to the different ways of management of tubers in these two conservation systems.
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Other subjects

  • Oxalis tuberosa Mol
  • genetic variation
  • Andean tubers
  • ISSR
  • Ex situ conservation
  • In situ conservation
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Other information

Language : English

Type : Journal Article

In AGRIS since : 2013

Volume : 54

Issue : 4

Start Page : 685

End Page : 690

Publisher : Dordrecht : Kluwer Academic Publishers

All titles :

" preliminary study of the genetic diversity of Bolivian oca (Oxalis tuberosa Mol.) varieties maintained in situ and ex situ through the utilization of ISSR molecular markers "