Izvorni znanstveni članak
https://doi.org/10.15177/seefor.15-19
Black Locust (Robinia pseudoacacia L.) Root Cuttings: Diversity and Identity Revealed by SSR Genotyping: A Case Study
Maria Emilia Malvolti
; National Research Council of Italy (CNR), Institute of Agro-Environmental and Forest Biology (IBAF), Via Guglielmo Marconi 2, I-05010 Porano, Italy
Irene Olimpieri
; National Research Council of Italy (CNR), Institute of Agro-Environmental and Forest Biology (IBAF), Via Guglielmo Marconi 2, I-05010 Porano, Italy
Paola Pollegioni
; National Research Council of Italy (CNR), Institute of Agro-Environmental and Forest Biology (IBAF), Via Guglielmo Marconi 2, I-05010 Porano, Italy
Klára Cseke
; National Agricultural Research and Innovation Centre, Forest Research Institute, Department of Tree Breeding, Várkerület 30/A, HU-9600 Sárvár, Hungary
Zsolt Keserű
; National Agricultural Research and Innovation Centre, Forest Research Institute, Department of Plantation Forestry, Farkassziget 3, HU-4150 Püspökladány, Hungary
Károly Rédei
; National Agricultural Research and Innovation Centre, Forest Research Institute, Department of Plantation Forestry, Farkassziget 3, HU-4150 Püspökladány, Hungary
Sažetak
Background and Purpose: Black locust (Robinia pseudoacacia L.) is a valuable species native to North America and today widely planted throughout the world for biomass production. In Hungary, where Robinia has great importance in the forest management, the clones have been selected for plantations on good, medium and poor quality sites. To conserve the identity, superior clones are vegetatively propagated by root cuttings. At times the collection of root cuttings can cause uncertainty for clonal identity because of the overlap of roots from neighboring plants. This can occur especially when the repository is damaged from severe environmental accidents and the planting layout has been lost. The aim of this study has been to verify by molecular markers the diversity or identity of black locust clones by root cuttings harvested in a damaged trial.
Materials and Methods: Root cuttings of 91 clones belonging to five cultivars were collected in a trial severely damaged by storms and flooding periods. The obtained plantlets were analyzed with nine microsatellite (SSR) markers and the genetic identity/diversity within and among the plants was tested using the software GenAlEx version 6.
Results: Multilocus genotypes (MLG) and the Paetkau’s assignation test (1985) revealed genetic variability among the samples: the analyzed plantlets were grouped in four classes instead of the five expected. In addition, 6 unique genotypes have been detected.
Conclusions: This study remarks problems that may arise during the harvest of Robinia’s root cuttings, especially when the planting layout has been confused. Molecular analyses can be successfully used to control the germplasm before its sale as guaranty for nurseries, farmers and stakeholders.
Ključne riječi
Black locust (Robinia pseudoacacia L.); vegetative propagation; molecular markers; microsatellites; genotyping
Hrčak ID:
149473
URI
Datum izdavanja:
3.12.2015.
Posjeta: 1.074 *