e-journal

Effect of Incomplete Lineage Sorting On Tree-Reconciliation-Based Inference of Gene Duplication

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In the tree reconciliation approach to infer the duplication history of a gene family, the gene (family) tree is compared to the corresponding species tree. Incomplete lineage sorting (ILS) gives rise to stochastic variation in the topology of a gene tree and hence likely introduces false duplication events when a tree reconciliation method is used. We quantify the effect of ILS on gene duplication inference in a species tree in terms of the expected number of false duplication events inferred from reconciling a random gene tree, which occurs with a probability predicted in coalescent theory, and the species tree. We computationally examine the relationship between the effect of ILS on duplication inference in a species tree and its topological parameters. Our findings suggest that ILS may cause non-negligible bias on duplication inference, particularly on an asymmetric species tree. Hence, when gene duplication is
inferred via tree reconciliation or any other approach that takes gene tree topology into account, the ILS-induced bias should be examined cautiously.
Index Terms—Gene tree and species tree reconciliation, incomplete lineage sorting, gene duplication

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Informasi Detail

Judul Seri

IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS

No. Panggil

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Penerbit

New York : IEEE., 2014

Deskripsi Fisik

IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS, VOL. 11, NO. 3, MAY/JUNE 2014

Bahasa

English

ISBN/ISSN

1545-5963

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

VOL. 11, NO. 3, MAY/JUNE 2014

Subjek

BIOLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

Yuli/Agus

Versi lain/terkait

Lampiran Berkas

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