Genetic diversity of American hazelnut in the Upper Midwest, USA

Demchik, Michael C.; Kern, Anthony J.; Braun, Lois; Fischbach, Jason; Turnquist, Keith

doi:10.1007/s10457-017-0097-2

Cited by 9 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sathuvalli and Mehlenbacher (2012) studied the genetic diversity of 87 C. americana populations using SSR markers and observed a high level of genetic diversity (Ho = 0.68, He = 0.74). Demchik et al (2018) found a similar result that there was a highly heterozygous for 25 C. americana accessions, with 0.69 (Ho) and 0.78 (He), in the upper midwestern United States. Compared with these related studies, our results indicate a relatively higher level of genetic diversity, as the mean Ho and He values for C. heterophylla were 0.74 and 0.82, respectively, and 0.67 and 0.82 for C. kweichowensis, respectively.…”

Section: Discussionmentioning

confidence: 54%

“…Compared with other Corylus species, the results agreed with those for C. mandshurica (Zong et al, 2015) and for C. avellana (G€ urcan et al, 2010b). F st values of 25 C. americana accessions were evaluated by Demchik et al (2018), and varied from 0.02 to 0.19, with a mean value of 0.12, which further supported high levels of genetic diversity within populations. Wright (1978) suggested that F st values of between 0.05 and 0.15 were indicative of moderate genetic differentiation.…”

Section: Discussionmentioning

confidence: 76%

See 1 more Smart Citation

Genetic Diversity and Population Structure of Chinese Corylus heterophylla and Corylus kweichowensis Using Simple Sequence Repeat Markers

Zhao¹,

Ma²,

Ma³

et al. 2020

J. Amer. Soc. Hort. Sci.

View full text Add to dashboard Cite

Corylus heterophylla and Corylus kweichowensis are economically and ecologically important nut-producing woody shrubs that are distributed across northern and southern regions of China. However, few studies have examined the genetic diversity and genetic relationships between C. heterophylla and C. kweichowensis, and their taxonomic relationships have been questioned. In this study, 796 individuals collected from 34 natural populations (21 C. heterophylla and 13 C. kweichowensis populations) were investigated to assess the genetic diversity and population structure using 11 microsatellite loci. Analysis of molecular variance revealed that genetic differentiation of C. heterophylla and C. kweichowensis within populations accounted for 93.57% and 88.91% of total variation, respectively. The C. heterophylla and C. kweichowensis populations as a whole group were analyzed by multiple programs, which showed that the 34 populations were divided into two genetic clusters. One cluster included 21 C. heterophylla populations, and the second cluster contained 13 C. kweichowensis populations. We conclude from these results that C. heterophylla and C. kweichowensis are distinct species. The Mantel test showed that the genetic distance was significantly correlated with the geographic distance (r = 0.580, P < 0.001). The populations of C. heterophylla [e.g., populations WC (Weichang), MS (Mishan), and WA (Wu’an)] and C. kweichowensis [e.g., populations YX (Yuexi), ZP (Zhenping), LA (Lin’an), and TB (Taibai)] with high allelic richness are considered suitable for in situ conservation. Our study provides valuable information for breeding and conservation of genetic resources of C. heterophylla, C. kweichowensis, and related species.

show abstract

Section: Discussionmentioning

confidence: 54%

Section: Discussionmentioning

confidence: 76%

Genetic Diversity and Population Structure of Chinese Corylus heterophylla and Corylus kweichowensis Using Simple Sequence Repeat Markers

Zhao¹,

Ma²,

Ma³

et al. 2020

J. Amer. Soc. Hort. Sci.

View full text Add to dashboard Cite

show abstract

“…Eastern filbert blight resistance [93], local adaptation [24], cold hardiness [94], heat and drought tolerance [24], and genetic diversity [94,95].…”

Section: Corylus Americana Waltermentioning

confidence: 99%

Germplasm Development of Underutilized Temperate U.S. Tree Crops

et al. 2019

View full text Add to dashboard Cite

In the Midwest U.S. dominated corn-soybean landscape, agroforestry systems can be particularly valuable for increasing the provisioning and regulatory capacity of the agricultural landscape. However, these systems have not yet been broadly integrated into the landscape of this region since they are mostly relegated to marginal lands. A growing body of literature suggests a path to increase the adoption of agroforestry in the Midwest U.S. lies in the incorporation of low-input food-producing tree species that provide economic incentives for farmers. Studies of the system-level integration of such approaches have proceeded by using the currently available cultivars and breeding selections of various tree nut and fruit species. While existing varieties and breeding selections provide the opportunity for initial system development and integration, their broad adaptability to the Midwest U.S. and its marginal land-types is unexplored. Thus, a second tier of research includes the genetic improvement and adaptation of tree crop selections to their respective target environments throughout the Midwest U.S. Fortunately, select tree crops of interest are amendable to systematic breeding and have wild relatives that are endemic across the region. In this paper, we discuss the value of these wild relatives for broadening the adaption of cultivated tree crop selections by using the hazelnut as an example species. We present a framework using geospatial tools to define and prioritize target environments for breeding and, in turn, exploiting wild relative germplasm.

show abstract

“…In particular, single sequence repeats (SSRs) or microsatellites have long been the preferred class of molecular markers for genotyping vegetatively propagated crops for their ability to discriminate at any stage of development, based on SSR multiallelism, high polymorphism, cost-effectiveness, and high reproducibility [ 24 ]. SSRs have been proven to be highly effective tools in assessing genetic diversity also in Corylus avellana L. [ 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. By these molecular markers, hazelnut germplasm collections have been fingerprinted, defining synonymies and homonymies [ 34 , 35 , 36 ], assessing genetic relationships and parentage [ 37 , 38 , 39 , 40 , 41 ], investigating the genetic structure of different populations comparing local cultivars and wild genotypes [ 29 , 32 , 38 , 42 , 43 ], and developing genetic maps for association analysis [ 44 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

Diversity Assessment and DNA-Based Fingerprinting of Sicilian Hazelnut (Corylus avellana L.) Germplasm

Fiore

Marchese

Mauceri

et al. 2022

Plants

View full text Add to dashboard Cite

The characterization of plant genetic resources is a precondition for genetic improvement and germplasm management. The increasing use of molecular markers for DNA-based genotype signature is crucial for variety identification and traceability in the food supply chain. We collected 75 Sicilian hazelnut accessions from private and public field collections, including widely grown varieties from the Nebrodi Mountains in north east Sicily (Italy). The germplasm was fingerprinted through nine standardized microsatellites (SSR) for hazelnut identification to evaluate the genetic diversity of the collected accessions, validating SSR discrimination power. We identified cases of homonymy and synonymy among acquisitions and the unique profiles. The genetic relationships illustrated by hierarchical clustering, structure, and discriminant analyses revealed a clear distinction between local and commercial varieties. The comparative genetic analysis also showed that the Nebrodi genotypes are significantly different from the Northern Italian, Iberian, and Turkish genotypes. These results highlight the need and urgency to preserve Nebrodi germplasm as a useful and valuable source for traits of interest employable for breeding. Our study demonstrates the usefulness of molecular marker analysis to select a reference germplasm collection of Sicilian hazelnut varieties and to implement certified plants’ production in the supply chain.

show abstract

Genetic diversity of American hazelnut in the Upper Midwest, USA

Cited by 9 publications

References 29 publications

Genetic Diversity and Population Structure of Chinese Corylus heterophylla and Corylus kweichowensis Using Simple Sequence Repeat Markers

Genetic Diversity and Population Structure of Chinese Corylus heterophylla and Corylus kweichowensis Using Simple Sequence Repeat Markers

Germplasm Development of Underutilized Temperate U.S. Tree Crops

Diversity Assessment and DNA-Based Fingerprinting of Sicilian Hazelnut (Corylus avellana L.) Germplasm

Contact Info

Product

Resources

About