title: A Microarray-Based Analysis Reveals that a Short Photoperiod Promotes Hair Growth in the Arbas Cashmere Goat.
abstract: Many animals exhibit different behaviors in different seasons. The photoperiod can have effects on migration, breeding, fur growth, and other processes. The cyclic growth of the fur and feathers of some species of mammals and birds, respectively, is stimulated by the photoperiod as a result of hormone-dependent regulation of the nervous system. To further examine this phenomenon, we evaluated the Arbas Cashmere goat (Capra hircus), a species that is often used in this type of research. The goats were exposed to an experimentally controlled short photoperiod to study the regulation of cyclic cashmere growth. Exposure to a short photoperiod extended the anagen phase of the Cashmere goat hair follicle to increase cashmere production. Assessments of tissue sections indicated that the short photoperiod significantly induced cashmere growth. This conclusion was supported by a comparison of the differences in gene expression between the short photoperiod and natural conditions using gene chip technology. Using the gene chip data, we identified genes that showed altered expression under the short photoperiod compared to natural conditions, and these genes were found to be involved in the biological processes of hair follicle growth, structural composition of the hair follicle, and the morphogenesis of the surrounding skin appendages. Knowledge about differences in the expression of these genes as well as their functions and periodic regulation patterns increases our understanding of Cashmere goat hair follicle growth. This study also provides preliminary data that may be useful for the development of an artificial method to improve cashmere production by controlling the light cycle, which has practical significance for livestock breeding.
authors.affiliation: Institute of Animal Husbandry, Academy of Agriculture and Stockbreeding Sciences, Hohhot, Inner Mongolia, China.|Kunming Institute of Animal Science, Chinese Academy of Sciences, Kunming, Yunna, Inner Mongolia, China.
authors.forename: Bin
authors.identifier: http://orcid.org/0000-0001-9384-5421
authors.initials: B
authors.lastname: Liu
authors.affiliation: Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, China.
authors.forename: Fengqin
authors.initials: F
authors.lastname: Gao
authors.affiliation: College of Life Science, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Guo
authors.affiliation: Institute of Animal Husbandry, Academy of Agriculture and Stockbreeding Sciences, Hohhot, Inner Mongolia, China.
authors.forename: Dubala
authors.initials: D
authors.lastname: Wu
authors.affiliation: Etuokeqianqi Arctic God Research Institute of Cashmere and Livestock, Erdos, China.
authors.forename: Bayasihuliang
authors.initials: B
authors.lastname: Hao
authors.affiliation: Institute of Animal Husbandry, Academy of Agriculture and Stockbreeding Sciences, Hohhot, Inner Mongolia, China.
authors.forename: Yurong
authors.initials: Y
authors.lastname: Li
authors.affiliation: Institute of Animal Husbandry, Academy of Agriculture and Stockbreeding Sciences, Hohhot, Inner Mongolia, China.
authors.forename: Cunfa
authors.initials: C
authors.lastname: Zhao
mesh_terms: D000818:Animals; D019363:Cytochrome P-450 CYP1A1 / Q000235:genetics / Q000378:metabolism; D005260:Female; D005786:Gene Expression Regulation; D063990:Gene Ontology; D006041:Goats / Q000254:growth & development*; D006197:Hair / Q000254:growth & development*; D020411:Oligonucleotide Array Sequence Analysis; D017440:Photoperiod; D012867:Skin / Q000378:metabolism; D059467:Transcriptome
chemical_list: D019363:Cytochrome P-450 CYP1A1
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