• 제목/요약/키워드: Plumage color

검색결과 14건 처리시간 0.025초

Screening of Genetic Variations in Korean Native Duck using Next-Generation Resequencing Data

  • Eunjin Cho;Minjun Kim;Hyo Jun Choo;Jun Heon Lee
    • 한국가금학회지
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    • 제50권3호
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    • pp.187-191
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    • 2023
  • Korean native ducks (KNDs) continue to have a high preference from consumers due to their excellent meat quality and taste characteristics. However, due to low productivity and fixed plumage color phenotype, it could not secure a large share in the domestic market compared to imported species. In order to improve the market share of KNDs, the genetic characteristics of the breed should be identified and used for improvement and selection. Therefore, this study was conducted to identify the genetic information of colored and white KNDs using next-generation resequencing data and screening for differences between the two groups. As a result of the analysis, the genetic variants that showed significant differences between the colored and white KND groups were mainly identified as mutations related to tyrosine activity. The variants were located in the genes that affect melanin synthesis and regulation, such as EGFR, PDGFRA, and DDR2, and these were reported as the candidate genes related to plumage pigmentation in poultry. Therefore, the results of this study are expected to be useful as a basis for understanding and utilizing the genetic characteristics of KNDs for genetic improvement and selection of white broiler KNDs.

닭에서 품종 확인을 위한 DNA 마커에 관한 고찰 (DNA markers in chicken for breed discrimination)

  • 라세둘;이승환;이준헌
    • 농업과학연구
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    • 제39권2호
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    • pp.211-217
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    • 2012
  • There is an emerging interest in using DNA markers for breed identification in animals. This article reviews the breed identification markers in chicken, mainly developed in Chungnam National University, with particular emphasis on the mitochondrial DNA markers and the nuclear DNA markers including the SNPs in MHC region and the plumage color related MC1R markers. This information would be very useful for an appropriate conservation breeding program as well as for the establishment of molecular markers for chicken breed identifications.

Melanin-based structural coloration of birds and its biomimetic applications

  • Deok‑Jin Jeon;Suejeong Paik;Seungmuk Ji;Jong‑Souk Yeo
    • Applied Microscopy
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    • 제51권
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    • pp.14.1-14.11
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    • 2021
  • Melanin has been a widely researched pigment by scientists for decades as it is undoubtedly the most ubiquitous and ancient pigment found in nature. Melanin plays very signifcant roles in structural plumage colors in birds: it has visible light-absorbing capabilities, and nanoscale structures can be formed by self-assembling melanin granules. Herein, we review recent progress on melanin-based structural coloration research. We hope that this review will provide current understanding of melanin's structural and optical properties, natural coloration mechanisms, and biomimetic methods to implement artifcial melanin-based structural colors.

비침습적 성감별 방법에 의한 검은머리갈매기(Saundersilarus saundersi)의 암수 포란행동 (A non-invasive sexing method reveals the patterns of sex-specific incubation behavior in Saunders's Gulls (Saundersilarus saundersi))

  • 주은진;하미라;정길상;윤종민
    • 한국조류학회지
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    • 제25권2호
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    • pp.69-76
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    • 2018
  • 조류에서 성적이형은 암수간 신체크기, 깃털, 색, 또는 행동의 차이를 의미한다. 일반적으로, 갈매기과를 포함한 많은 해양성조류는 깃털 색에서 성적동형을 보이며, 암수가 양육을 공유하기 때문에 야외에서 성감별을 어렵게 만든다. 쉽고 비침습적인 성감별 도구의 개발은 생활사의 진화에서 암수 양육의 정도를 이해하는데 유용하게 사용될 수 있다. 본 연구는 사육 검은머리갈매기(Saundersilarus saundersi) 번식쌍의 부리-머리 형태를 이용하여 비침습적 성감별 도구를 개발하고, 이를 활용하여 야생 번식쌍의 암수 포란행동의 변이를 설명하는 요인을 분석하였다. 사육상태에서 자연적으로 형성된 쌍에서, 수컷은 배우자 암컷에 비해 상대적으로 큰 부리-머리 비율을 나타내었으며, 이 성감별 도구를 이용하였을 때 성공적으로 야생 12 번식쌍의 성감별을 수행하였다. 야생수컷과 암컷은 함께 낮시간의 95%를 포란을 위해 둥지를 지켰다. 그러나, 수컷의 포란비율은 일몰시간이 가까워지면서 급격하게 증가하였는데, 이는 수컷의 야간 포란의 가능성을 내재하고 있는 것으로 사료된다. 결론적으로, 본 연구는 성적동형인 검은머리갈매기의 비침습적 성감별 도구를 개발하였으며, 이를 활용 하였을때 야생 번식쌍의 암수 포란행동의 변이가 다른 생태적인 요인보다는 일주기와 연관성이 높다는 것을 보여주고 있다.