Genetic parameters of resistance to Meloidogyne incognita in melon

Candido, Willame dos Santos; Castoldi, Renata; Santos, Lucas da Silva; Tobar-Tosse, Dora Enith; Soares, Pedro Luiz Martins; Braz, Leila Trevisan

doi:10.1590/0103-8478cr20151147

Cited by 2 publications

(2 citation statements)

References 7 publications

(5 reference statements)

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“…The inheritance of quantitative characters is complex, and many genes has a minor contribution to the phenotype. Inheritance of quantitative characters is generally studied by estimating population parameters (Rosmaina et al 2016;Candido et al 2017;Rohaeni and Yunani 2017;Coelho et al 2019).…”

Section: Principal Component Analysis (Pca) Of Quantitative Charactermentioning

confidence: 99%

Minimal number of morphoagronomic characters required for the identification of pineapple (Ananas comosus) cultivars in peatlands of Riau, Indonesia

et al. 2021

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Abstract. Rosmaina, Elfianis R, Almaksur A, Zulfahmi. 2021. Minimal number of morphoagronomic characters required for the identification of pineapple (Ananas comosus) cultivars in peatlands of Riau, Indonesia. Biodiversitas 22: 3854-3862. Pineapple (Ananas comosus L Merr) is a tropical fruit that has high economic value. In Riau Province, Indonesia, pineapples grow and produce well on various types of land, including the highly acidic peatland. There are many types of pineapples grown by from generation to generation, but so far, there have been no reports regarding the diversity of pineapples in peatlands. This study aimed to determine the minimal number of characters distinguishing pineapple morphological and agronomic characters in peatlands. The observations were done on 24 local genotypes of pineapple in peatlands. Characterization were carried out on 49 morphological and agronomic characters according to the Pineapple descriptor from the International Board for Plant Genetic Resources (IBPGRI). The data were analyzed by Multivariate Analysis, in which the principal components analysis was used for qualitative and quantitative traits. Based on the results of this study, there were at least 12 characters proposed to describe pineapple in peatlands, viz. seven qualitative characters (fruit base leaf color (collar), fruit shape, bractea color, fruit eye profile, fruit eye surface, flesh color, crown attachment to fruit) and five quantitative characters (fruit weight, fruit flesh weight, plant height, number of leaves and leaf length). Out of the 49 traits observed, 12 selected characters can be used as a minimal number of characters that can be used to identify pineapple cultivars on peatland. The findings of this research are rewarding for the conservation and management of genetic resources, selection, and breeding activities of pineapple plants.

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Section: Principal Component Analysis (Pca) Of Quantitative Charactermentioning

confidence: 99%

Minimal number of morphoagronomic characters required for the identification of pineapple (Ananas comosus) cultivars in peatlands of Riau, Indonesia

et al. 2021

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“…Quantitative traits have complex inheritance, conditioned by many genes with small individual effects, and are greatly affected by the environment. In these cases, the inheritance and variation of traits are studied on the population level through estimation of genetic parameters (Candido et al 2017, Rohaeni and Yunani 2017, Sakulphrom et al 2017, Coelho et al 2019. Cabral et al (1997) reported that segregations for leaf types was in accordance with the frequencies expected from the Collins and Kerns (1946) 2-gene model, with the Primavera cv.…”

Section: Genotypic Hypothesismentioning

confidence: 99%

Genetic control of leaf spinescence in BRS Imperial, Pérola, and Pico de Rosa pineapple cultivars

Júnior

Bezerra

Andrade

2021

Crop Breed. Appl. Biotechnol.

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Leaf spinescence in pineapple plants was evaluated in a total of 2.014 F1 individuals as follows: 1.125 plants of the progeny of the Imperial BRS cv. × Pérola cv. cross, and 889 plants of the progeny of the Pico de Rosa cv. × BRS Imperial cv. cross. The genetic hypothesis with two loci and epistatic interaction of the piping (P) over spiny (S) trait was tested. The chi-square test was performed on deviations between the observed and expected numbers based on the genetic hypotheses formulated. The "BRS Imperial" × "Pérola" and "Pico de Rosa" × "BRS Imperial" progenies segregated into 1:0:1 (spineless:spiny tip:spiny), expressing phenotypes of their respective parents. The spineless leaf ("BRS Imperial") is determined by the "Ppss" genotype, with the locus "P" in heterozygosity and the locus "S" in recessive homozygosity. The spiny leaf margin ("Pérola" and "Pico de Rosa") is controlled by the "ppss" genotype.

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Genetic parameters of resistance to Meloidogyne incognita in melon

Cited by 2 publications

References 7 publications

Minimal number of morphoagronomic characters required for the identification of pineapple (Ananas comosus) cultivars in peatlands of Riau, Indonesia

Minimal number of morphoagronomic characters required for the identification of pineapple (Ananas comosus) cultivars in peatlands of Riau, Indonesia

Genetic control of leaf spinescence in BRS Imperial, Pérola, and Pico de Rosa pineapple cultivars

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