Transcriptome dynamics in developing testes of domestic cats and impact of age on tissue resilience to cryopreservation

BMC Genomics

Alexandre R. Silva¹  Andreia M. da Silva¹  Olga Amelkina²  Pierre Comizzoli² 

[1] Laboratory of Animal Germplasm Conservation, Federal Rural University of Semi-Arid - UFERSA, Mossoró, RN, Brazil;Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA;

关键词: Puberty;    Vitrification;    Testicular tissue;    Domestic cat;    RNA-seq;    Networks;   

DOI  :  10.1186/s12864-021-08099-8

来源: Springer

【 摘 要 】

BackgroundFundamental knowledge of cellular and molecular mechanisms in developing testicular tissues is critical to better understand gonadal biology and responses to non-physiological conditions. The objective of our study was to (1) analyze transcriptome dynamics in developing testis of the domestic cat and (2) characterize age effects on the initial response of the tissue to vitrification. Tissues from adult and juvenile cats were processed for histology, DNA integrity, and RNA sequencing analyses before and after vitrification.ResultsTranscriptomic findings enabled to further characterize juvenile period, distinguishing between early and late juvenile tissues. Changes in gene expression and functional pathways were extensive from early to late juvenile to adult development stages. Additionally, tissues from juvenile animals were more resilient to vitrification compared to adult counterparts, with early juvenile sample responding the least to vitrification and late juvenile sample response being closest to adult tissues.ConclusionsThis is the first study reporting comprehensive datasets on transcriptomic dynamic coupled with structural analysis of the cat testis according to the age and exposure to cryopreservation. It provides a comprehensive network of functional terms and pathways that are affected by age in the domestic cat and are either enriched in adult or juvenile testicular tissues.

【 授权许可】

CC BY