作者
Richard JA Buggs, Linjing Zhang, Nicholas Miles, Jennifer A Tate, Lu Gao, Wu Wei, Patrick S Schnable, W Brad Barbazuk, Pamela S Soltis, Douglas E Soltis
发表日期
2011/4/12
期刊
Current Biology
卷号
21
期号
7
页码范围
551-556
出版商
Elsevier
简介
New hybrid species might be expected to show patterns of gene expression intermediate to those shown by parental species [1, 2]. "Transcriptomic shock" may also occur, in which gene expression is disrupted; this may be further modified by whole genome duplication (causing allopolyploidy) [3–16]. "Shock" can include instantaneous partitioning of gene expression between parental copies of genes among tissues [16–19]. These effects have not previously been studied at a population level in a natural allopolyploid plant species. Here, we survey tissue-specific expression of 144 duplicated gene pairs derived from different parental species (homeologs) in two natural populations of 40-generation-old allotetraploid Tragopogon miscellus (Asteraceae) plants. We compare these results with patterns of allelic expression in both in vitro "hybrids" and hand-crossed F1 hybrids between the parental diploids T. dubius …
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RJA Buggs, L Zhang, N Miles, JA Tate, L Gao, W Wei… - Current Biology, 2011