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Advances in Research on Fruit Crop Breeding and Genetics 3.0

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 25 May 2024 | Viewed by 588

Special Issue Editor

Special Issue Information

Dear Colleagues,

The development of new fruit varieties is a long and tedious process, involving the crossing of parents with selected traits to generate desired seedling progenies to develop superior cultivars. While breeders’ ability to generate large populations of such progenies is almost unlimited, the management and selection of these seedlings limit the progress of this process. Therefore, molecular studies on the development of marker-assisted selection (MAS) strategies are particularly crucial, especially for fruit species with long juvenile periods, whose character evaluation, including their interaction with the rootstock, is expensive and time-consuming. In addition, most fruit species have been sequenced, and their reference genomes are available; this genomic analysis has evidenced high synteny between genomes and transcriptomes. The present post-genomic era has given rise to new features that can be applied to fruit species from a methodological point of view and from a global perspective. Firstly, researchers in this era have incorporated high-throughput sequencing methods for DNA, RNA, proteins, and epigenetic events. In addition, from a global perspective, the center of gravity of the molecular processes is focused on the expression of genes and the way in which such expression is regulated, analyzing different omics, including genomics, transcriptomics, proteomics, or epigenetics. This global omics perspective will be investigated in this Special Issue, which will highlight the main conclusions of this recent development for fruit crop breeding and production.

Dr. Pedro Martínez-Gómez
Guest Editor

Manuscript Submission Information

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Keywords

  • fruit breeding
  • genetic
  • genomic
  • transcriptomic
  • proteomic
  • epigenetic

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Published Papers (1 paper)

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Research

13 pages, 6216 KiB  
Article
Exogenous Melatonin Application Accelerated the Healing Process of Oriental Melon Grafted onto Squash by Promoting Lignin Accumulation
by Yulei Zhu, Jieying Guo, Fang Wu, Hanqi Yu, Jiahuan Min, Yingtong Zhao, Changhua Tan, Yuanwei Liu and Chuanqiang Xu
Int. J. Mol. Sci. 2024, 25(7), 3690; https://doi.org/10.3390/ijms25073690 - 26 Mar 2024
Viewed by 406
Abstract
Melatonin (MT) is a vital hormone factor in plant growth and development, yet its potential to influence the graft union healing process has not been reported. In this study, we examined the effects of MT on the healing of oriental melon scion grafted [...] Read more.
Melatonin (MT) is a vital hormone factor in plant growth and development, yet its potential to influence the graft union healing process has not been reported. In this study, we examined the effects of MT on the healing of oriental melon scion grafted onto squash rootstock. The studies indicate that the exogenous MT treatment promotes the lignin content of oriental melon and squash stems by increasing the enzyme activities of hydroxycinnamoyl CoA ligase (HCT), hydroxy cinnamaldehyde dehydrogenase (HCALDH), caffeic acid/5-hydroxy-conifer aldehyde O-methyltransferase (COMT), caffeoyl-CoA O-methyltransferase (CCoAOMT), phenylalanine ammonia-lyase (PAL), 4-hydroxycinnamate CoA ligase (4CL), and cinnamyl alcohol dehydrogenase (CAD). Using the oriental melon and squash treated with the exogenous MT to graft, the connection of oriental melon scion and squash rootstock was more efficient and faster due to higher expression of wound-induced dedifferentiation 1 (WIND1), cyclin-dependent kinase (CDKB1;2), target of monopteros 6 (TMO6), and vascular-related NAC-domain 7 (VND7). Further research found that the exogenous MT increased the lignin content of the oriental melon scion stem by regulating CmCAD1 expression, and then accelerated the graft healing process. In addition, the root growth of grafted seedlings treated with the exogenous MT was more vigorous. Full article
(This article belongs to the Special Issue Advances in Research on Fruit Crop Breeding and Genetics 3.0)
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