Genomics-Assisted Design of Biotic Stress Resistant Vegetable Amaranths

Dharajiya, Darshan T.; Trivedi, Gauravi N.; Thakkar, Nevya J; Pachchigar, Karen P.; Teli, Basavaraj; Tiwari, Kapil K.; Blair, Matthew W.

doi:10.1007/978-3-030-97785-6_7

Cited by 3 publications

(2 citation statements)

References 109 publications

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“…They also share characteristics of being monoecious, adaptable to a wide range of environments, with high levels of drought/salinity tolerance and C 4 photosynthesis ( Dharajiya et al., 2022 ; Jamalluddin et al., 2022 ). The South American species was domesticated near the equator and is much more photoperiod sensitive than the North American species, which from here on in we will refer to as Mesoamerican.…”

Section: Introductionmentioning

confidence: 99%

Differentiation of Andean and Mesoamerican accessions in a proposed core collection of grain amaranths

et al. 2023

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Grain amaranths are made up of three New World species of pseudo-cereals with C4 photosynthesis from the dicotyledonous family Amaranthaceae and the genus Amaranthus. They originate in two ecoregions of the Americas, namely, the inter-Andean valleys of South America and the volcanic axis and lowlands of Mexico and Central America. These correspond to two centers of domestications for Andean and Mesoamerican crops, with one cultivated species found in the first region and two found in the latter region. To date, no core collection has been made for the grain amaranths in the United States Department of Agriculture (USDA) germplasm system. In this study, our objective was to create a core for the 2,899 gene bank accessions with collection site data by town or farm site of which 1,090 have current geo-referencing of latitude and longitude coordinates. We constituted the core with 260 genotypes of Amaranthus, which we evaluated with 90 single-nucleotide polymorphism markers. Our goal was to distinguish between Andean and Mesoamerican gene pools of amaranths, including the cultivated species and three possible progenitor or wild relative ancestors along with two more species in an outgroup. Population structure, clustering, and discriminant analysis for principal components showed that Andean species Amaranthus caudatus and Amaranthus quitensis shared fewer alleles with Mesoamerican species Amaranthus cruentus and Amaranthus hypochondriacus, compared to each group individually. Amaranthus hybridus was a bridge species that shared alleles with both regions. Molecular markers have the advantage over morphological traits at quickly distinguishing the Andean and Mesoamerican cultivars and have the added benefit of being useful for following inter-species crosses and introgression.

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Section: Introductionmentioning

confidence: 99%

Differentiation of Andean and Mesoamerican accessions in a proposed core collection of grain amaranths

et al. 2023

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“…Genetic diversity plays an important part in the success of any breeding programs (SARR et al, 2020;DHARAJIYA et al, 2022). Knowledge of genetic diversity in available germplasm and genotypes is very applicable for crop improvement, assisting the effective use of genetic variations in breeding programs through encouraging proper selection of cross combination among large sets of parental genotypes (CHAUDHARI et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Morphological and molecular characterization of cowpea (Vigna unguiculata L. Walp.) genotypes

Patel

Dharajiya

et al. 2022

Genetika

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Cowpea [Vigna unguiculata (L.) Walp.], is a legume and one of the most ancient crops known to man and grown in tropical and subtropical regions. Cowpea seeds have a high nutritional value containing high amount of protein (20-25%). Despite of its importance, the utilization of genetic diversity and germplasm characterization in cowpea breeding program has not been fully exploited. Therefore, twelve morphological characters and six polymorphic microsatellite/simple sequence repeat (SSRs) markers were used to analyze genetic diversity in thirty-eight cowpea genotypes. The dendrogram was constructed using UPGMA algorithm and Gower?s dissimilarity values (ranged from 0.0601 to 0.5589) derived from twelve morphological characters. It was grouped in seven clusters showing the most diverse genotypes were CGD 1246 and CGD 1311 (Gower?s distance: 0.5589) and the most similar genotypes were GC 1501 and GC 1601 (Gower?s distance: 0.0601). In molecular characterization, a total of 14 amplicons were detected with a ranged from two to three with an average 2.33 alleles per loci. The mean values of polymorphic information content (PIC) and heterozygosity was 0.319 and 0.399, respectively which are measures of the efficiency of markers for studying polymorphism level available in the cowpea genotypes. Total 224 amplicons were considered for to derive Jaccard?s similarity matrix for the construction of dendrogram (having six clusters) and 2-D PCA (Principal Component Analysis) plot. The morphological characters and SSR markers can be used in diversity analysis and characterization of cowpea genotypes. The per se performing genotypes for individual character can be exploited in population/genotype development of cowpea for the improvement of that particular character. This will provide information to plant breeders for selection of parents to develop populations in cowpea breeding programs.

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From ‘Farm to Fork’: Exploring the Potential of Nutrient-Rich and Stress-Resilient Emergent Crops for Sustainable and Healthy Food in the Mediterranean Region in the Face of Climate Change Challenges

Matías,

Rodríguez,

Carrillo-Vico

et al. 2024

Plants

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In the dynamic landscape of agriculture and food science, incorporating emergent crops appears as a pioneering solution for diversifying agriculture, unlocking possibilities for sustainable cultivation and nutritional bolstering food security, and creating economic prospects amid evolving environmental and market conditions with positive impacts on human health. This review explores the potential of utilizing emergent crops in Mediterranean environments under current climate scenarios, emphasizing the manifold benefits of agricultural and food system diversification and assessing the impact of environmental factors on their quality and consumer health. Through a deep exploration of the resilience, nutritional value, and health impacts of neglected and underutilized species (NUS) such as quinoa, amaranth, chia, moringa, buckwheat, millet, teff, hemp, or desert truffles, their capacity to thrive in the changing Mediterranean climate is highlighted, offering novel opportunities for agriculture and functional food development. By analysing how promoting agricultural diversification can enhance food system adaptability to evolving environmental conditions, fostering sustainability and resilience, we discuss recent findings that underscore the main benefits and limitations of these crops from agricultural, food science, and health perspectives, all crucial for responsible and sustainable adoption. Thus, by using a sustainable and holistic approach, this revision analyses how the integration of NUS crops into Mediterranean agrifood systems can enhance agriculture resilience and food quality addressing environmental, nutritional, biomedical, economic, and cultural dimensions, thereby mitigating the risks associated with monoculture practices and bolstering local economies and livelihoods under new climate scenarios.

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Genomics-Assisted Design of Biotic Stress Resistant Vegetable Amaranths

Cited by 3 publications

References 109 publications

Differentiation of Andean and Mesoamerican accessions in a proposed core collection of grain amaranths

Differentiation of Andean and Mesoamerican accessions in a proposed core collection of grain amaranths

Morphological and molecular characterization of cowpea (Vigna unguiculata L. Walp.) genotypes

From ‘Farm to Fork’: Exploring the Potential of Nutrient-Rich and Stress-Resilient Emergent Crops for Sustainable and Healthy Food in the Mediterranean Region in the Face of Climate Change Challenges

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