Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/2177
Title: Characterizing the molecular and morphophysiological diversity of Italian red clover
Authors: Pagnotta, Mario Augusto
Annicchiarico, Paolo
Farina, Anna
Proietti, Sandro
Keywords: Genetic distance;Genetic resources;Genetic structure;Gene flow
Issue Date: 2011
Publisher: Springer
Source: Pagnotta, M.A. et al. 2011. Characterizing the molecular and morphophysiological diversity of Italian red clover. "Euphytica" 179 (3): 393-404
Abstract: 
Red clover (Trifolium pratense L.) is the
third major forage species in Europe, but there is limited information on the biodiversity and the genetic structure of landraces and natural populations which evolved in this region. The objective of this
study was producing such information for Italian germplasm on the ground of molecular and morphophysiological diversity. The study included 16 Italian natural populations from a wide range of environments, four landraces representing the four traditional commercial ecotypes, and two varieties. Eight morphophysiological traits were assessed in a replicated trial under field conditions, whereas two AFLPs primer combinations with 140 polymorphic markers were recorded on a random sample of 13 genotypes per population. Ordination and classification results based on morphophysiological data clearly kept track of the type of germplasm (i.e. landrace or natural population) and its geographic origin, unlike results based on molecular markers. Euclidean distances
among populations based on morphophysiological traits were not correlated with Nei’s genetic distances
based on molecular markers according to Mantel’s test. Geographical distances among landrace or natural population material was correlated with distances based on morphophysiological traits but not with those based on molecular markers. The
average within-population variation stimated via molecular markers was about 2.6-fold higher than that among populations, preventing an acceptable discrimination among most populations. On average, natural populations tended to have within-population
variation similar to varieties and somewhat lower than landraces. Our results have implications for collection, conservation, exploitation and registration in a sui generis system of red clover genetic
resources.
Description: 
L’articolo è disponibile sul sito dell’editore http://www.springerlink.com/
URI: http://hdl.handle.net/2067/2177
ISSN: 0014-2336
DOI: 10.1007/s10681-010-0333-6
Appears in Collections:DABAC - Archivio della produzione scientifica

Files in This Item:
File Description SizeFormat
Page-1 from Euphytica 2011 179-clover.pdf104.86 kBAdobe PDFView/Open
Show full item record

Page view(s)

18
Last Week
0
Last month
4
checked on Jan 26, 2021

Download(s)

16
checked on Jan 26, 2021

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons