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Conference Paper · September 2015 DOI: 10.13140/RG.2.1.4998.4409 CITATIONS 0 READS 76 7 authors, including: Some of the authors of this publication are also working on these related projects: Soil protist initiative View project Dario Pediconi University of Camerino 34 PUBLICATIONS 111 CITATIONS SEE PROFILE Dharaneedharan Subramanian Jeju National University 18 PUBLICATIONS 120 CITATIONS SEE PROFILE Maria Gabriela Molina School of Agronomy. Catholic University of C… 8 PUBLICATIONS 35 CITATIONS SEE PROFILE Antonietta La Terza University of Camerino 83 PUBLICATIONS 527 CITATIONS SEE PROFILE All content following this page was uploaded by Stefano Pallotti on 27 November 2015. The user has requested enhancement of the downloaded file.



Stefano Pallotti1*, Dario Pediconi1*, Dharaneedharan Subramanian2*, María Gabriela Molina3*, Marco Antonini4#, Carlo Renieri1#, Antonietta La Terza1#

1School of Bioscience and Veterinary Medicine, University of Camerino, Via Gentile III da Varano, 62032 Camerino (MC), Italy

2Department of Marine Life Science, Jeju National University, South Korea

3Facultad de Ciencias Agropecuarias .Universidad Nacional de Córdoba. Universidad Católica de

Córdoba ,Argentina

4ENEA C.R. Casaccia Biotec-Agro, S.M. di Galeria, 00060 Roma, Italy *these authors contributed equally to this work

#corresponding authors

Two coat phenotypes have been described in alpaca, Huacaya and Suri. The most common Huacaya type, is characterized by a crimped, dense fleeces, while the Suri type is

characterized by a non-crimped, straight fleece. The genetic background of the two coat phenotypes has not been yet clearly defined. Results from segregation analysis provide statistical evidences that the Suri trait is possible inherited as a single dominant gene. The aim of our study was to molecularly characterize the FGF5 as a possible candidate gene for hair length phenotype in Suri type because of its role in the regulation of the hair follicle growth cycle.

Currently, we have isolated and characterized two different cDNA clones encoding for

FGF5 obtained from total RNA purified from skin biopsies of Peruvian Suri type alpaca.

Sequence analysis revealed two types of transcripts: a long form (FGF5L) containing an ORF of 498 bp encoding for a putative 166 amino-acid polypeptide, and a a short form (FGF5S) of 375 bp encoding for a putative 125 amino-acid polypeptide. On the basis of the partial FGF5 genomic sequence data retrieved from the low-coverage 2.51X assembly of alpaca genome at the Ensembl database, the two transcript are produced by the alternative splicing of exon 5, which results in the loss of a fragment of 104 bases. Furthermore, RACE approaches specifically devised to characterize the 3’ and 5’ UTRs of FGF5 transcripts, show that the FGF5S isoform possesses two 3’-UTRs of 713 and 542 bases

respectively.Meanwhile a single 3’UTR has been so far identified for the FGF5L isoform. Work is in progress in our laboratory to better characterize the FGF5 isoforms and their expression in the skin of Suri and Huacaya alpacas, and to identify mutations potentially involved in the fleece variations of alpaca.

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