Genome Diversity in Maize

Pandita, Deepu; Parthasarathy, S.; Dhivyapriya, D.; Premkumar, R.; Pandita, Anu; Wani, Shabir Hussain

doi:10.1007/978-3-031-21640-4_1

Cited by 3 publications

(2 citation statements)

References 91 publications

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“…SSRs are tenderly repeated nucleotide motifs 1-6 bp (Mukhopadhyay et al, 2023;Yang et al, 2023) which are co-dominant, reproducible, highly e cient, detect high level of polymorphism and are evenly distributed (Sandra et al, 2023). SSRs provided an abundant class of polymorphisms in crops including soybean (Kumar et al, 2022), wheat (Lue et al, 2023), barley (Abebe et al, 2023), rice (Bhatia et al, 2022, Al daej et al, 2023 and maize (Bhatia et al, 2022, Pandita et al, 2023. In this connection a variety of SSR markers have been developed to improve various plant attributes as well as increase the economic rate of Brassica varieties.…”

Section: Introductionmentioning

confidence: 99%

Molecular Characterization of Brassica Species using SSR Markers

Khan,

Jadoon,

Ahmad

et al. 2023

Preprint

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Genetic diversity and relationship among F8-populations of brassica species: B. napus, B. rapa and B. juncea were carried out on eight parental-lines along with their 38 introgressed populations using SSR markers to cover the diversity present in them as broadly as possible. Diversity analysis based on three neutral markers formed four distinct clusters with 1, 3, 19 and 22 genotypes, respectively. Based on these finding traits specific markers were employed which further formed six distinct clusters of selected plants with 3, 17, 2, 6, 3 and 14 genotypes. The cluster analysis identified genotypes with desirable biochemical contents i.e. plant 1 of Bnj43 had low glucosinolate, plant 3 of Bnr38 had high oleic acid content, plant 5 of Bnr38 had low linolenic acid, plant 1 of Bnr23 had low erucic acid while plant 2 of Bnr25 had high oil content and plant 2 of Bnj13 had high protein content. Moreover, the polymorphism information content (PIC) value of neutral as well as trait specific SSRs ranged from 0.5 to 0.96 and 0.45 to 0.95, respectively with an overall PIC value for all primers of 0.67. Considerable genetic diversity found among the F8-populations and their parents using SSR markers proved SSR analysis to be a useful tool. Moreover, based on the current findings, populations Bnj50F8, Bnr38F8, Bnj43F8, Bnj3F8 and Bnj25F8 are suggested to be used as source populations for transfer of desirable traits in future Brassica improvement programs.

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Section: Introductionmentioning

confidence: 99%

Molecular Characterization of Brassica Species using SSR Markers

Khan,

Jadoon,

Ahmad

et al. 2023

Preprint

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“…Globally, maize is among the three leading staple food grains. [1,2] and contains the highest genetic potential among all other grains [3]. As the leading producer, the United States, contributes to over 40% of the world's maize production [4].…”

Section: Introductionmentioning

confidence: 99%

Influence of Seed Cake as Organic Fertilizer on Growth, Dry Matter Production and Root Development of Two Cultivars of C4 Plant, Maize (Zea mays) under Lab Conditions

Nahar,

Nitu

2023

IJPSS

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A pot culture experiment was conducted with the C4 plant (Zea mays) in the lab during the period of vegetative growth to evaluate the influence of organic fertilizer in the form of mustard oil seed cake on growth, biomass yield and root development of two maize cultivars, hybrid yellow and hybrid purple. The seed cake fertilizer treatments imposed in the experiment were control (T0), others at 2.6%, 3.5% and 4.4% of soil weight respectively against T1, T2 and T3 treatment. The results indicated moderately elevated seed cake application showed considerable improvement in vegetative growth and the plant biomass components including height and other morphological parameters as leaf numbers, length of leaves, number of node and internodal distance per plant, root yield, fresh weight and dry matter production including the root to shoot ratio of the plants, in both the cultivars and in most of the cases found highest in hybrid yellow compared to hybrid purple. Among the plant components, shoot, root dry weight and root to shoot ratio had the greatest decrease under fertilizer deficiency at control (T0) treatment. Among the different doses of seed cake applications, the highest values recorded at moderate treatments for most of the parameters, both at vegetative growth and post harvesting after three months of experiment. The result shows that morphological parameters, biomass yield and its components of the plant were maximum when fertilized with seed cake at 2.6 % and 3.5% of soil weight in treatments T1 and T2, found to be the perfect doses of fertilizer for the maize vegetative growth and biomass yield compared to T0 and other treatments. So, based on the result it can be concluded that T1 and T2 treatment is the best fertilizer treatment for the hybrid yellow maize yield.

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Inter-subspecies diversity of maize to drought stress with physio-biochemical, enzymatic and molecular responses

Eskikoy,

Kutlu

2024

PeerJ

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Background Drought is the most significant factor limiting maize production, given that maize is a crop with a high water demand. Therefore, studies investigating the mechanisms underlying the drought tolerance of maize are of great importance. There are no studies comparing drought tolerance among economically important subspecies of maize. This study aimed to reveal the differences between the physio-biochemical, enzymatic, and molecular mechanisms of drought tolerance in dent (Zea mays indentata), popcorn (Zea mays everta), and sugar (Zea mays saccharata) maize under control (no-stress), moderate, and severe drought stress. Methods Three distinct irrigation regimes were employed to assess the impact of varying levels of drought stress on maize plants at the V14 growth stage. These included normal irrigation (80% field capacity), moderate drought (50% field capacity), and severe drought (30% field capacity). All plants were grown under controlled conditions. The following parameters were analyzed: leaf relative water content (RWC), loss of turgidity (LOT), proline (PRO) and soluble protein (SPR) contents, membrane durability index (MDI), malondialdehyde (MDA), and hydrogen peroxide (H2O2) content, the antioxidant enzyme activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), and catalase (CAT). Additionally, the expression of heat shock proteins (HSPs) was examined at the transcriptional and translational levels. Results The effects of severe drought were more pronounced in sugar maize, which had a relatively high loss of RWC and turgor, membrane damage, enzyme activities, and HSP90 gene expression. Dent maize, which is capable of maintaining its RWC and turgor in both moderate and severe droughts, and employs its defense mechanism effectively by maintaining antioxidant enzyme activities at a certain level despite less MDA and H2O2 accumulation, exhibited relatively high drought tolerance. Despite the high levels of MDA and H2O2 in popcorn maize, the up-regulation of antioxidant enzyme activities and HSP70 gene and protein expression indicated that the drought coping mechanism is activated. In particular, the positive correlation of HSP70 with PRO and HSP90 with enzyme activities is a significant result for studies examining the relationships between HSPs and other stress response systems. The discrepancies between the transcriptional and translational findings provide an opportunity for more comprehensive investigations into the role of HSPs in stress conditions.

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Genome Diversity in Maize

Cited by 3 publications

References 91 publications

Molecular Characterization of Brassica Species using SSR Markers

Molecular Characterization of Brassica Species using SSR Markers

Influence of Seed Cake as Organic Fertilizer on Growth, Dry Matter Production and Root Development of Two Cultivars of C4 Plant, Maize (Zea mays) under Lab Conditions

Inter-subspecies diversity of maize to drought stress with physio-biochemical, enzymatic and molecular responses

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