PSVIII-11 Transcriptome profiling of bovine satellite cell differentiation in Hanwoo longissimus dorsi and semimembranosus muscle

Title
PSVIII-11 Transcriptome profiling of bovine satellite cell differentiation in Hanwoo longissimus dorsi and semimembranosus muscle
Publication Date
2019-12
Author(s)
Chung, Ki Yong
Lee, Eun Mi
Kwon, Eung Gi
Han, Man Hi
Heras-Saldana, Sara
( author )
OrcID: https://orcid.org/0000-0002-8665-6160
Email: sdelash2@une.edu.au
UNE Id une-id:sdelash2
Gondro, Cedric
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
American Society of Animal Science
Place of publication
Champaign, Illinois, United States of America
DOI
10.1093/jas/skz258.618
UNE publication id
une:1959.11/73819
Abstract

Hanwoo, Korean native cattle, have been known for high intramuscular adipose tissue compare to other beef cattle. Bovine satellite cells (BSC) of longissimus dorsi (LD) and semimembranosus (SM) tissues differentiated from myoblast into multinucleated myotubes has different characteristics under cell culture system. Differentially expressed genes (DEG) of the two muscle tissues were compared based on 24, 48, 96, and 168 hours. Difference in the index between LD and SM BSC at each time point were tested with an analysis of variance for a model fitting time (day), tissue and the interaction between time and tissue. P-values < 0.05 were considered significantly different. There were 640 genes difference in 4 Day with the lowest DEG, 442 in Up and 198 in Down. There were 2,755 genes difference in 7 Day and 879 genes in Up and 1876 genes in Down. The differential expression of actin alpha 1 (ACTA1), actin alpha cardiac muscle 1 (ACTC1), matrix metallopeptidase 2 (MMP2), and myosin light chain phosphorylated fast skeletal muscle (MYLPF) genes (P < 0.05) were involved in the differentiation of SM greater than those of LD muscle. However, we found the same pattern in the transcription levels of myogenine (MYOG), myogenic differentiation 1(MYOD), and myogenic regulatory factors 6 (MYF6) for both muscles. There were more difference in the enriched Gene ontology terms cell cycle, proliferation and G2/M transition of mitotic during the end of proliferation compare to myoblast differentiation. Our finding provide evidence that the differential expression in of ACTA1, ACTC1, MMP2, and MYLPF genes could be involved in the differentiation of LD and SM muscles. This data indicated that the origin of the BSC were epigenetically improved during the myogenic development of LD and SM

Link
Citation
Journal of Animal Science (Supplement: ASAS Annual Meeting Abstracts 2019, 97(3), p. 306-306
Start page
306
End page
306

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