인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Regulation of gene expression is a pivotal adaptive mechanism of organisms facing environmental variation. We studied the in situ gene expression of the shallow-water bivalve Aequiyoldia eightsii in Potter Cove (King George Island, Antarctica) occupying different habitats in front of a melting glacier on a local scale (1 km). The expression of nuclear genes was determined by (1) variation of the nuclear genome itself (nuclear SNPs) and equally strongly by (2) different environmental conditions characterizing the three locations and (3) the composition of the mitochondrial genotype (mitochondrial SNPs). Mitochondrial SNPs divided Antarctic animals into two groups, each composed of organisms featuring mitochondrial homoplasmy and heteroplasmy. We validated our results by contrasting the observed magnitudes of differentially expressed genes (DEGs) with magnitudes expected by stochasticity in randomized group comparisons. Habitat comparison revealed further differences in DEGs at local scale suggesting a high evolutionary adaptive potential to the specific microenvironments. Interestingly, differential expression analysis between mitotypes resulted in a higher number of DEGs than the obtained in the comparison by stations, distinguishing heteroplasmic from homoplasmic organisms. Our results suggest that the mitochondrial genome and possibly heteroplasmy may play a role in the regulation of nuclear gene expression with adaptive implications.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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