Department of Library and Information Science, Yonsei University, 50 Yonsei-ro, Seoul 120-749, Korea. min.song@yonsei.ac.kr.|Department of Library and Information Science, Yonsei University, 50 Yonsei-ro, Seoul 120-749, Korea. min.song@yonsei.ac.kr.|Department of Library and Information Science, Yonsei University, 50 Yonsei-ro, Seoul 120-749, Korea. min.song@yonsei.ac.kr.|Department of Library and Information Science, Yonsei University, 50 Yonsei-ro, Seoul 120-749, Korea. min.song@yonsei.ac.kr.|Department of Library and Information Science, Yonsei University, 50 Yonsei-ro, Seoul 120-749, Korea. min.song@yonsei.ac.kr.|Department of Library and Information Science, Yonsei University, 50 Yonsei-ro, Seoul 120-749, Korea. min.song@yonsei.ac.kr.|Department of Library and Information Science, Yonsei University, 50 Yonsei-ro, Seoul 120-749, Korea. min.song@yonsei.ac.kr.|INRA, UMR1061, Unité Génétique Moléculaire Animale, 123 avenue Albert Thomas, F-87060 Limoges Cedex, France. daniel.petit@unilim.fr.