Construction of a Core Collection of Germplasms from Chinese Fir Seed Orchards

Wu, Hanbin; Duan, Aiguo; Wang, Xihan; Chen, Zhiyun; Xie, Zhaoxiong; He, Guangcun; Jian-guo, Zhang

doi:10.3390/f14020305

Cited by 6 publications

(10 citation statements)

References 42 publications

(83 reference statements)

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“…J [97]; SSRs for Raphanus sativus L. [62], Cunninghamia lanceolata (Lamb.) Hook [16], Actinidia chinensis Planch. [79], Astragalus membranaceus Moench [106], Olea europaea L. [83], Castanea mollissima Bl.…”

Section: Data Selection For Core Collectionmentioning

confidence: 99%

Developments on Core Collections of Plant Genetic Resources: Do We Know Enough?

Fan

Wei

et al. 2023

Forests

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The core collection is a small subset that minimizes genetic redundancy while preserving the maximum genetic diversity of the entire population. Research on the core collection is crucial for the efficient management and utilization of germplasm resources. In this paper, the concept of the core collection and the research progress of its construction have briefly been summarized. Subsequently, some perspectives have been proposed in this research field for the near future. Four novel opinions have been presented, (1) the effective integration of multiple data types and accurate phenotyping methods need to be focused on; (2) the sampling strategy and bioinformatics software should be given attention; (3) the core collection of afforestation tree and bamboo species, with a wide natural distribution range and a large planting area, need to be carried out as soon as possible; (4) we should place a high priority on the study of genes discoveries and utilize these with a rapid, precise and high-throughput pattern based on re-sequencing technology. This paper provides a theoretical and technological reference for further study and the application of the plant core collection.

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Section: Data Selection For Core Collectionmentioning

confidence: 99%

Developments on Core Collections of Plant Genetic Resources: Do We Know Enough?

Fan

Wei

et al. 2023

Forests

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“…Kumar et al reported that six independent core libraries (CC1-CC6) were created by POWERCORE and MSTRAT using molecular marker and phenotypic data from two seasons in safflower [7]. Here, 50 pairs of InDel markers were combined with 11 oil traits to construct the core germplasm library of 214 safflower germplasm using Core Hunter 3, the advantage of that in developing smaller core sets has been demonstrated previously in plants such as Indian mustard and Chinese fir [31][32][33]. The results revealed that all six genetic diversity parameters of the core germplasm were higher than the original germplasm at the molecular level.…”

Section: Combination Of Phenotypes and Genotypes Improves The Reliabi...mentioning

confidence: 99%

Identification of genes associated with the biosynthesis of fatty acid in safflower seeds based on genetic markers and transcriptome analysis

Fan,

Qin,

et al. 2023

Preprint

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Background Safflower (Carthamus tinctorius L.) is an oilseed crop with substantial medicinal and economic value. However, the methods for constructing safflower core germplasm resources are limited, and the molecular mechanisms of lipid biosynthesis in safflower seeds are not well understood. Results In this study, 11 oil-related quantitative traits and 50 pairs of InDel markers were used to assess the diversity of a collection of 605 safflower germplasms. The original safflower germplasm exhibited rich phenotypic diversity, with high variation for most of the phenotypic traits under investigation. Similarly, high genetic diversity was evaluated in the original germplasm, in which the mean Shannon’s information index (I), observed heterozygosity (H0), and expected heterozygosity (He) were 0.553, 0.182, and 0.374, respectively. Four subgroups with strong genetic structures were identified and a core germplasm of 214 cultivars was constructed, which is well represented in the original germplasm. Meanwhile, differential expression analysis of the transcriptomes of high and low linoleic acid safflower varieties at two stages of seed development identified a total of 47 genes associated with lipid biosynthesis. High expression of gene KAS II and SAD gene enhanced the synthesis and accumulation of oleic acid, while FAD genes like FAD2 (Chr8G0104100), FAD3, FAD7 and FAD8 promoted the consumption of oleic acid conversion. The coordinated regulation of these multiple genes ensures the high accumulation of oleic acid in safflower seed oil. Conclusions The above results provide a guide for further studies to elucidate the molecular basis of oil accumulation in safflower seeds, contributing to the breeding of safflower seed for oil use.

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“…However, geneticists focus on the equal or acceptable contribution of individual plants to gene pool, which can produce a genetically high-quality seed crop [4][5][6]. High variations in the contribution also could help to achieve a balance using theoretical and practical tools [7][8][9], while large fertility variations were reported in different populations and years in 99 stands and 36 seed orchards of different forest tree species [10][11][12], and in Pinus brutia [13] and Cedrus libani [14].…”

Section: Introductionmentioning

confidence: 99%

Fertility Variation and Gene Diversity in Forest Populations

Kang,

Bilir,

Jeon

et al. 2023

Forests

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Fertility variation, defined as a difference in the ability to create progeny (i.e., reproductive success) among individuals, was reviewed using the related available theoretical and practical literature in an attempt to contribute to and improve future studies on the subject. Fertility variation is a useful guide for various purposes such as gene conservation, seed production programs, forest genetic resource (i.e., seed sources) management, other forestry practices (e.g., regeneration), and evolutional and physiological studies. Many papers and proceedings have been published, including both theoretical and practical approaches, on how fertility variation has improved in the last two decades. Large variations in fertility were widely reported among populations within species and among species. We reviewed the literature and combined our diverse knowledge to examine fertility variations and their linkage parameters. Fertility variations and their related parameters (e.g., gene diversity, status number, effective parent number, parental–balance curves) estimated based on reproductive characteristics have been studied for many years using easy and cheap surveys that are used for different purposes in forest sciences. Their importance is increasing and their use is becoming more widespread because of these advantages, leading to improvements in research papers. While many research papers have recently been published on fertility variations and linkage parameters, a review paper has not been published to date. Therefore, a review paper is needed based on a literature survey and unpublished experience, as a guide for future studies.

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Construction of a Core Collection of Germplasms from Chinese Fir Seed Orchards

Cited by 6 publications

References 42 publications

Developments on Core Collections of Plant Genetic Resources: Do We Know Enough?

Developments on Core Collections of Plant Genetic Resources: Do We Know Enough?

Identification of genes associated with the biosynthesis of fatty acid in safflower seeds based on genetic markers and transcriptome analysis

Fertility Variation and Gene Diversity in Forest Populations

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