The growing interest in maize landraces over the past two decades has led to the need to characterize the Italian maize germplasm. In Italy, hundreds of maize landraces have been developed, but only a few of them have been genetically characterized, and even fewer are currently employed in agriculture or for breeding purposes. In the present study, 13 maize landraces of the west Emilia-Romagna region were morphologically and genetically characterized. These accessions were sampled in 1954 from three provinces, Modena, Parma, and Piacenza, during the characterization project of Italian maize landraces. The morphological characterization of these 13 accessions was performed according to the UPOV protocol CPVO/TP2/3, examining 34 phenotypic traits. A total of 820 individuals were genotyped with 10 SSR markers. The genetic characterization revealed 74 different alleles, a FST mean value of 0.13, and a Nm mean of 1.73 over all loci. Moreover, AMOVA analysis disclosed a low degree of differentiation among accessions, with only 13% of genetic variability found between populations, supporting PCoA analysis results, where the first two coordinates explained only 16% of variability. Structure analysis, supported by PCoA, showed that only four accessions were clearly distinguished for both K = 4 and 6. Italian landraces can be useful resources to be employed in maize breeding programs for the development of new varieties, adapted to different environmental conditions, in order to increase crop resilience and expand the maize cultivation area.

Maria Di Pasquale, G., Stagnati, L., Lezzi, A., Lanubile, A., Marocco, A., Rossi, G., Busconi, M., Morphological and Genetic Characterization of Maize LandracesAdapted to Marginal Hills in North-West Italy, <<PLANTS>>, 2024; 13 (1030): 1-15. [doi:10.3390/plants13071030] [https://hdl.handle.net/10807/271055]

Morphological and Genetic Characterization of Maize Landraces Adapted to Marginal Hills in North-West Italy

Stagnati, Lorenzo
;
Lezzi, Alessandra;Lanubile, Alessandra;Marocco, Adriano;Busconi, Matteo
2024

Abstract

The growing interest in maize landraces over the past two decades has led to the need to characterize the Italian maize germplasm. In Italy, hundreds of maize landraces have been developed, but only a few of them have been genetically characterized, and even fewer are currently employed in agriculture or for breeding purposes. In the present study, 13 maize landraces of the west Emilia-Romagna region were morphologically and genetically characterized. These accessions were sampled in 1954 from three provinces, Modena, Parma, and Piacenza, during the characterization project of Italian maize landraces. The morphological characterization of these 13 accessions was performed according to the UPOV protocol CPVO/TP2/3, examining 34 phenotypic traits. A total of 820 individuals were genotyped with 10 SSR markers. The genetic characterization revealed 74 different alleles, a FST mean value of 0.13, and a Nm mean of 1.73 over all loci. Moreover, AMOVA analysis disclosed a low degree of differentiation among accessions, with only 13% of genetic variability found between populations, supporting PCoA analysis results, where the first two coordinates explained only 16% of variability. Structure analysis, supported by PCoA, showed that only four accessions were clearly distinguished for both K = 4 and 6. Italian landraces can be useful resources to be employed in maize breeding programs for the development of new varieties, adapted to different environmental conditions, in order to increase crop resilience and expand the maize cultivation area.
2024
Inglese
Maria Di Pasquale, G., Stagnati, L., Lezzi, A., Lanubile, A., Marocco, A., Rossi, G., Busconi, M., Morphological and Genetic Characterization of Maize LandracesAdapted to Marginal Hills in North-West Italy, <<PLANTS>>, 2024; 13 (1030): 1-15. [doi:10.3390/plants13071030] [https://hdl.handle.net/10807/271055]
File in questo prodotto:
File Dimensione Formato  
plants-13-01030.pdf

accesso aperto

Licenza: Creative commons
Dimensione 2.34 MB
Formato Adobe PDF
2.34 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/271055
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact