Genetics and Breeding of Chili Pepper Capsicum spp.

Rêgo, Elizanilda Ramalho do; Rêgo, Maílson Monteiro do

doi:10.1007/978-3-319-06532-8_4

Cited by 12 publications

(4 citation statements)

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“…In some C. frutescens varieties with more prominent stylus, the cross-pollination rates ranged from 9 to 38% (Odland and Porter, 1941). Other studies have shown that cross-pollination between Capsicum accessions may vary from 2 to 90% (Tanksley, 1984;Pickersgill, 1997). Differences in crossing rates in different Capsicum populations of the same species may be explained by variables such as planting time, spatial plant distribution, flowering overlap, population density of pollinating insects, genetic compatibility, among others.…”

Section: Discussionmentioning

confidence: 99%

“…is characterized by a huge phenotypic variability, which is manifested in several traits of horticultural interest, including plant architecture, resistance to multiple diseases, size, aroma, shape, as well as biochemical composition of their fruits (Greenleaf, 1986;Boiteux et al, 1993;Pereira et al, 2011). This diversity represents an opportunity to direct use this germplasm in gene transfer programs via intra-specific and inter-specific crossings (Pickersgill, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Capsicum species have perfect (hermaphroditic) flowers, with male and female reproductive organs present in a single flower, which makes self-fertilization their major mating system (Pickersgill, 1997). The plants tend to self-pollinate prior to or during flower opening and the exposure of receptive stigmas to potential pollinators often occurs after self-pollination (Melo et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The plants tend to self-pollinate prior to or during flower opening and the exposure of receptive stigmas to potential pollinators often occurs after self-pollination (Melo et al, 2014). However, different studies have shown that the crosspollination rate in Capsicum is highly variable, ranging from 2 to 90% (Tanksley, 1984;Pickersgill, 1997). For example, in some cultivars of C. frutescens the possibility of cross-pollination is increased by morphological traits such as long styles, and it is reported to vary from 9 to 38% (Odland and Porter, 1941).…”

Section: Introductionmentioning

confidence: 99%

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Research Article Estimate of natural cross-pollination rate of Capsicum annuum using a codominant molecular marker associated with fruit pungency

Justino¹,

Fonseca²,

Ferreira³

et al. 2018

Genet. Mol. Res.

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The production of seeds with high genetic quality requires accurate estimates of the natural cross-pollination rate in cultivated Capsicum species. This is important in order to establish the most suitable isolation distance among fields of distinct genotypes, to minimize the risk of genetic contamination and to ensure that the agronomic and horticultural traits of an elite breeding material are preserved in a given seed lot. Cross-pollination studies in C. annuum are practically non-existent under Brazilian conditions. The objective of the present study was to estimate the natural rate of C. annuum crosspollination in seed production fields established in the highland area of Central Brazil ("Cerrado"). A molecular marker (CA-Pun1), which allows the identification of cross-fertilization between C. annuum accessions with pungent and sweet fruits, was employed to identify hybrid seeds. This marker detects functional and non-functional alleles of an acyl-transferase (Pun1) gene, responsible to produce capsaicin (pungency) in placental tissue of C. annuum fruits. Seedlings of cultivar 'Magali R' (sweet fruits) were planted in the field at incremental distances from cultivar 'BRS Garça' (pungent fruits). Progenies obtained from 'Magali R' plants were genotyped with marker CA-Pun1. Approximately 10.8% of the fruits displayed at least one seed originated from cross-pollination. The overall natural cross-pollination rate in C. annuum was estimated at 1.2%, according to the percentage of hybrid seeds detected by molecular analysis. No significant differences were Nascimento WM, et al. 2 Genetics and Molecular Research 17 (1): gmr16039887 detected in the rate of cross-pollination among plants for distances of up to 7.2 m.

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Section: Discussionmentioning

confidence: 99%