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Grafting and Rootstock Effects on Seed Oil Contents in Tetraploid Cotton Species (Gossypium L.)

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Abstract

Grafting experiments were performed using Gossypium hirsutum accession TM‑1 and G. barbadense accession Pima 3-79 to identify grafting and rootstock effects on boll weight (BW), seed numbers per boll (SNB), seed weight (SW), cottonseed crude oil (CO), myristic acid (MA), palmitic acid (PA), stearic acid (SA), palmitoleic acid (POA), heptadecanoic acid (HAD), oleic acid (OA), linolenic acid (LA), gamma-linolenic acid (GLA), alfa-linolenic acid (ALA), cis‑8,11,14-eicosatrienoic acid (CEA), cis‑4,7,10,13,16,19-docosahexaenoic acid (CDA), lignoceric acid (LCA), and nervonic acid (NA). The results showed that BW and SW could be improved in G. hirsutum scions. On the other hand, BW, SNB, and SW traits could be improved in G. barbadense scions. The CO of two tetraploid species is mainly comprised of PA, OA, and LA. Grafting and rootstock effects altered the levels of CO, PA, OA, LA, MA, ALA, and NA. The results revealed that G. barbadense could be used as the rootstock in homografts and heterografts. To figure out the molecular mechanism(s) behind fatty acid changes in grafts, more studies with cotton genotypes with different amounts of fatty acids are needed.

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Acknowledgements

The authors thank Assoc. Prof. Dr. Adem Bardak for his technical support in the extraction and determination studies of cottonseed oils. This study was financially supported by a grant from the Scientific and Technological Research Council of Turkey (Project No: 118O179).

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Two authors conceived the study and performed material preparation, data collection, and analysis. Two authors read and approved the final manuscript.

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Correspondence to Mehmet Karaca.

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M. Karaca and A.G. Ince declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Karaca, M., Ince, A.G. Grafting and Rootstock Effects on Seed Oil Contents in Tetraploid Cotton Species (Gossypium L.). Gesunde Pflanzen 75, 1401–1410 (2023). https://doi.org/10.1007/s10343-022-00787-z

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  • DOI: https://doi.org/10.1007/s10343-022-00787-z

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