Loading…
Tβ4-overexpression based on the piggyBac transposon system in cashmere goats alters hair fiber characteristics
Increasing cashmere yield is one of the vital aims of cashmere goats breeding. Compared to traditional breeding methods, transgenic technology is more efficient and the piggyBac (PB) transposon system has been widely applied to generate transgenic animals. For the present study, donor fibroblasts we...
Saved in:
Published in: | Transgenic research 2017-02, Vol.26 (1), p.77-85 |
---|---|
Main Authors: | , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Increasing cashmere yield is one of the vital aims of cashmere goats breeding. Compared to traditional breeding methods, transgenic technology is more efficient and the piggyBac (PB) transposon system has been widely applied to generate transgenic animals. For the present study, donor fibroblasts were stably transfected via a PB donor vector containing the coding sequence of cashmere goat thymosin beta-4 (
Tβ4
) and driven by a hair follicle-specific promoter, the keratin-associated protein 6.1 (
KAP6.1
) promoter. To obtain genetically modified cells as nuclear donors, we co-transfected donor vectors into fetal fibroblasts of cashmere goats. Five transgenic cashmere goats were generated following somatic cell nuclear transfer (SCNT). Via determination of the copy numbers and integration sites, the
Tβ4
gene was successfully inserted into the goat genome. Histological examination of skin tissue revealed that
Tβ4
-overexpressing, transgenic goats had a higher secondary to primary hair follicle (S/P) ratio compared to wild type goats. This indicates that
Tβ4
-overexpressing goats possess increased numbers of secondary hair follicles (SHF). Our results indicate that
Tβ4
-overexpression in cashmere goats could be a feasible strategy to increase cashmere yield. |
---|---|
ISSN: | 0962-8819 1573-9368 |
DOI: | 10.1007/s11248-016-9988-7 |