ArticleScientific reports2017
Differential evolutionary patterns and expression levels between sex-specific and somatic tissue-specific genes in peanut.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Deciphering evolutionary dynamics of WRKY genes in Arachis species.BMC genomics · 2023Article
- Distinct responses to rare codons in selecteLife · 2022Article
- Comprehensive analysis of coding sequence architecture features and gene expression inPhysiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Old and young duplicate genes reveal different responses to environmental changes in Arachis duranensis.Molecular genetics and genomics : MGG · 2019Article
- Comparative analysis of selection mode reveals different evolutionary rate and expression pattern in Arachis duranensis and Arachis ipaënsis duplicated genes.Plant molecular biology · 2018Article
- WRKY transcription factors in legumes.BMC plant biology · 2018Article
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Abstract
The patterns of evolution and expression of tissue-specific genes are poorly understood beyond sex-specific genes. Accordingly, we identified 3,191 tissue-specific genes and 38,745 common genes using 22 RNA-seq datasets from cultivated peanut. The expression levels of tissue-specific genes were significantly lower than those of common genes. Further, the expression levels of sex-specific genes were significantly higher than those of somatic tissue-specific genes. Among sex-specific genes, the expression levels of gynoecium-specific genes were significantly higher than those of androecium-specific genes. Function-specific genes were lacking among tissue-specific genes, and tissue-specific gene annotations overlapped among different tissues. Duplicate gene pairs were classified as homogeneous pairs expressed within the same tissue or heterogeneous pairs expressed in different tissues. Heterogeneous gene pairs evolved more rapidly than homogeneous gene pairs. In addition, somatic tissue-specific genes evolved faster than sex-specific genes. Molecular signatures of selection indicated that somatic tissue-specific genes have mainly experienced relaxed selection, while sex-specific genes have been under stronger selective constraint. Somatic tissue-specific genes had higher codon usage bias than sex-specific genes. These contrasting patterns between somatic tissue-specific and sex-specific genes provide new insights into the basic biology and evolution of peanut, an important crop.
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