Pre-Breeding Prospects of Lablab (Lablab purpureus (L.) Sweet) Accessions in Tanzania: Morphological Characterization and Genetic Diversity Analysis

Letting, Fanuel K.; Venkataramana, P.; Ndakidemi, Patrick A.

doi:10.3390/agronomy12102272

Cited by 9 publications

(2 citation statements)

References 57 publications

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“…Cluster analysis based on 14 quantitative traits grouped the accessions into four groups, with weak association between group membership and the place of origin. Variation between clusters meant that, for example, one cluster had more locules pod -1 and seeds pod -1 , and another had a greater number of pods and yield (Letting et al, 2022). Gene pools with 2 seeds per pod and 4 or more seeds per pod are the result of independent domestication events (Njaci et al, 2023).…”

Section: Morpho-agronomic Traits-based Diversitymentioning

confidence: 99%

Exploiting genetic and genomic resources to enhance productivity and abiotic stress adaptation of underutilized pulses

Dwivedi,

Chapman,

Abberton

et al. 2023

Front. Genet.

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Underutilized pulses and their wild relatives are typically stress tolerant and their seeds are packed with protein, fibers, minerals, vitamins, and phytochemicals. The consumption of such nutritionally dense legumes together with cereal-based food may promote global food and nutritional security. However, such species are deficient in a few or several desirable domestication traits thereby reducing their agronomic value, requiring further genetic enhancement for developing productive, nutritionally dense, and climate resilient cultivars. This review article considers 13 underutilized pulses and focuses on their germplasm holdings, diversity, crop-wild-crop gene flow, genome sequencing, syntenic relationships, the potential for breeding and transgenic manipulation, and the genetics of agronomic and stress tolerance traits. Recent progress has shown the potential for crop improvement and food security, for example, the genetic basis of stem determinacy and fragrance in moth bean and rice bean, multiple abiotic stress tolerant traits in horse gram and tepary bean, bruchid resistance in lima bean, low neurotoxin in grass pea, and photoperiod induced flowering and anthocyanin accumulation in adzuki bean have been investigated. Advances in introgression breeding to develop elite genetic stocks of grass pea with low β-ODAP (neurotoxin compound), resistance to Mungbean yellow mosaic India virus in black gram using rice bean, and abiotic stress adaptation in common bean, using genes from tepary bean have been carried out. This highlights their potential in wider breeding programs to introduce such traits in locally adapted cultivars. The potential of de-domestication or feralization in the evolution of new variants in these crops are also highlighted.

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Section: Morpho-agronomic Traits-based Diversitymentioning

confidence: 99%

Exploiting genetic and genomic resources to enhance productivity and abiotic stress adaptation of underutilized pulses

Dwivedi,

Chapman,

Abberton

et al. 2023

Front. Genet.

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“…The repeated material is the control from which the diversity of experimental errors is obtained while the tested clones are not repeated [13]. Many breeding studies have used augmented design due to limited planting material or a large number of materials tested such as chickpea [14], cassava [15], soybean [16] cowpea [17], wheat [18], lablab [19], and also garlic [20,21].…”

Section: Introductionmentioning

confidence: 99%

Estimation of genetic parameters and principal component analysis on garlic germplasm using augmented block design

Aswani,

Tihurua,

Azmi

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Garlic (Allium sativum L.) is one of the important herbs worldwide. Genetic studies on Indonesian garlic germplasm are still limited. We aimed to estimate genetic parameters and analyze the Principal Component of Indonesian local garlic accessions. Augmented Block Design with three replications (blocks) was used to characterize 20 accessions with 16 accessions as ‘Test’ and four check varieties. The research was carried out at Lembang, West Java (1250 m asl) from October 2022 until March 2023. The result showed that from block-adjusted ANOVA, tested accessions gave significant differences in number of leaves, leaf length, ratio between length and width of stomata, and yield per plot. A high genotypic coefficient of variance (GCV) was observed on pseudo-stem diameter, root length, and yield per plot. It also showed that the number of leaves, the ratio between length and width of stomata, and yield per plot had high value of hBS (broad-sense heritability). Our study also showed that yield per plot had positive and significant (p<0.05) correlations with pseudo-stem diameter, leaf length, chlorophyll content, stomatal length, and root length. Principal Component Analysis showed that 82.75% of the total variance can be explained by the first three PCs viz. 57.19%, 15.27%, and 10.29% respectively.

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Rice breeding for multi‐canopy system: Estimations of genetic parameters and response to selection

Sholehah,

Suwarno,

Hapsari

et al. 2024

Agronomy Journal

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One strategy currently being developed to increase rice (Oryza sativa L.) productivity is using a multi‐canopy cropping system in rice cultivation. This method involves planting tall and short rice genotypes in the same hill. The objective of this experiment was to estimate the genetic parameters and response to selection in multi‐canopy rice. Each experiment was arranged in an augmented randomized complete block design with five replications for the checks. In the first planting season, 200 F3 families from IPB196 and IPB197 populations were planted in monoculture and multi‐canopy as the short genotypes. IPB187‐F‐40‐1‐1 was used in multi‐canopy as the tall genotype. Selection of 25% based on grain weight per hill of short genotype in multi‐canopy was performed, and 50 families were selected and their F4 seeds were planted in the second season along with the same tall genotype. The results indicated the genotype × cropping system was significant for grain weight per hill in the F3 and F4 generations. Grain weight per hill has a similar realized h2ns in the multi‐canopy (0.58) with monoculture (0.54). Meanwhile, the response to selection in multi‐canopy (3.60) was higher compared to monoculture (2.09), and therefore the selection of rice lines for a multi‐canopy system should be conducted in the multi‐canopy environment. A selection percentage of 5% resulted in a higher response to selection. These findings may provide insight into the acceleration of breeding rice varieties for the multi‐canopy system.

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Pre-Breeding Prospects of Lablab (Lablab purpureus (L.) Sweet) Accessions in Tanzania: Morphological Characterization and Genetic Diversity Analysis

Cited by 9 publications

References 57 publications

Exploiting genetic and genomic resources to enhance productivity and abiotic stress adaptation of underutilized pulses

Exploiting genetic and genomic resources to enhance productivity and abiotic stress adaptation of underutilized pulses

Estimation of genetic parameters and principal component analysis on garlic germplasm using augmented block design

Rice breeding for multi‐canopy system: Estimations of genetic parameters and response to selection

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