CnMADS1, a MADS transcription factor, positively modulates cell proliferation and lipid metabolism in the endosperm of coconut (Cocos nucifera L.)

Sun, Rong; Gao, Li; Mi, Zhiqi; Zheng, Yusheng; Li, Dongdong

doi:10.1007/s00425-020-03490-3

Cited by 11 publications

(5 citation statements)

References 44 publications

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“…support MADS-box TFs as important regulators of lipid metabolism and responsible for a decreased accumulation of polyunsaturated fatty acids (S.-Y. Li et al 2020; Sun et al 2020). GDSL and MADS-box genes account for 25.3% of the soybean seed-specific genes with at least 8 TPM.…”

Section: Resultsmentioning

confidence: 99%

Multiomic analysis of genes related to oil traits in legumes provide insights into lipid metabolism and oil richness in soybean

Turquetti-Moraes,

Cardoso-Silva,

Almeida-Silva

et al. 2024

Preprint

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Soybean (Glycine max) and common bean (Phaseolus vulgaris) diverged approximately 19 million years ago. While these species share a whole-genome duplication (WGD), the Glycine lineage experienced a second, independent WGD. Despite the significance of these WGDs, their impact on gene families related to oil-traits remains poorly understood. Here, we report an in-depth investigation of oil-related gene families in soybean, common bean, and twenty-eight other legume species. We adopted a systematic approach that included transcriptome and co-expression analysis, identification of orthologous groups, gene duplication modes and evolutionary rates, and family expansions and contractions. We curated a list of oil candidate genes and found that 91.5% of the families containing these genes expanded in soybean in comparison to common bean. Notably, we observed an expansion of triacylglycerol (TAG) biosynthesis (~3:1) and an erosion of TAG degradation (~1.4:1) families in soybean in comparison to common bean. In addition, TAG degradation genes were two-fold more expressed in common bean than in soybean, suggesting that oil degradation is also important for the sharply contrasting seed oil contents in these species. We found 17 transcription factor hub genes that are likely regulators of lipid metabolism. Finally, we inferred expanded and contracted families and correlated these patterns with oil content found in different legume species. In summary, our results do not only shed light on the evolution of oil metabolism genes in soybean, but also present multifactorial evidence supporting the prioritization of candidates for crop improvement.

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Section: Resultsmentioning

confidence: 99%

Multiomic analysis of genes related to oil traits in legumes provide insights into lipid metabolism and oil richness in soybean

Turquetti-Moraes,

Cardoso-Silva,

Almeida-Silva

et al. 2024

Preprint

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“…OsMADS29 ‐RNAi has been shown to result in aborted and/or shriveled seeds with deficient starch accumulation in the endosperm (Yang et al., 2012). Heterologous expression of the CnMADS1 gene significantly increases the seed size of Arabidopsis (Sun et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

Genome‐wide analysis of genomic imprinting in the endosperm and allelic variation in flax

Jiang

Guo

Ye³

et al. 2021

The Plant Journal

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Genomic imprinting is an epigenetic phenomenon that causes biased expression of maternally and paternally inherited alleles. In flowering plants, genomic imprinting predominantly occurs in the triploid endosperm and plays a vital role in seed development. In this study, we identified 248 candidate imprinted genes including 114 maternally expressed imprinted genes (MEGs) and 134 paternally expressed imprinted genes (PEGs) in flax (Linum usitatissimum L.) endosperm using deep RNA sequencing. These imprinted genes were neither clustered in specific chromosomal regions nor well conserved among flax and other plant species. MEGs tended to be expressed specifically in the endosperm, whereas the expression of PEGs was not tissue-specific. Imprinted single nucleotide polymorphisms differentiated 200 flax cultivars into the oil flax, oil-fiber dual purpose flax and fiber flax subgroups, suggesting that genomic imprinting contributed to intraspecific variation in flax. The nucleotide diversity of imprinted genes in the oil flax subgroup was significantly higher than that in the fiber flax subgroup, indicating that some imprinted genes underwent positive selection during flax domestication from oil flax to fiber flax. Moreover, imprinted genes that underwent positive selection were related to flax functions. Thirteen imprinted genes related to flax seed size and weight were identified using a candidate gene-based association study. Therefore, our study provides information for further exploration of the function and genomic variation of imprinted genes in the flax population.

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“…OsMADS29 -RNAi resulted in aborted and/or shriveled seeds with deficient starch accumulation in endosperm (Yang et al ., 2012). Heterologous expression the CnMADS gene significantly increased the seed size of Arabidopsis (Sun, 2018).…”

Section: Discussionmentioning

confidence: 99%

Genome-wide screen of genomic imprinting in endosperm and population-level analysis reveal allelic variation for imprinting in flax

Jiang

Guo

et al. 2020

Preprint

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Genomic imprinting is an epigenetic phenomenon caused by the biased expression of maternally and paternally inherited alleles. In flowering plants, genomic imprinting predominantly occurs in triploid endosperm and plays a vital role in seed development. In this study, we identified 241 candidate imprinted genes including 143 maternally expressed imprinted genes (MEGs) and 98 paternally expressed imprinted genes (PEGs) in flax (Linum usitatissimum L.) endosperm using deep RNA sequencing. The conservation of imprinting in plants is very limited and imprinting clustering is not a general feature. MEGs tends to be endosperm expression specific, while PEGs are non-tissue specific. Imprinted SNPs differentiated 200 flax cultivars into oil flax, oil-fiber dual purpose flax (OF) and fiber flax subgroups, suggesting that genomic imprinting contributes to intraspecific variation in flax. The nucleotide diversity (π) of imprinted genes in oil flax subgroup is significantly higher than that in fiber flax subgroup, indicating that some imprinted genes undergo positive selection during flax domestication from oil flax to fiber flax. Imprinted genes undergo positive selection is related to the functions. Eleven imprinted genes related to seed size and weight were identified using the candidate gene-based association study. Our study provides information for further exploring the function and genomic variation of imprinted genes in flax population.

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CnMADS1, a MADS transcription factor, positively modulates cell proliferation and lipid metabolism in the endosperm of coconut (Cocos nucifera L.)

Abstract: Main conclusionThe function of the first MADS-box transcription factor from endosperm of coconut, CnMADS1, was characterized via seed-specific overexpression in Arabidopsis seeds and further confirmed in protoplasts of coconut.

Cited by 11 publications

References 44 publications

Multiomic analysis of genes related to oil traits in legumes provide insights into lipid metabolism and oil richness in soybean

Multiomic analysis of genes related to oil traits in legumes provide insights into lipid metabolism and oil richness in soybean

Genome‐wide analysis of genomic imprinting in the endosperm and allelic variation in flax

Genome-wide screen of genomic imprinting in endosperm and population-level analysis reveal allelic variation for imprinting in flax

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