Intra and interspecific hybridization in the genus "capsicum"

Falusi, O. A.; Morakinyo, J. A.

doi:10.4314/acsj.v2i2.54703

Cited by 4 publications

(4 citation statements)

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“…acuminatum showed that hybridization is possible in nature and is most probably responsible for the existence of many varieties of pepper that are in cultivation. This corroborates the work of Falusi and Morakinyo (1994). There were little differences in the percentage pollen viability among the pepper genotypes studied but there were great differences in fruit set in reciprocal crosses indicating incipient dioecy as described by Morakinyo (2011).…”

Section: Discussionsupporting

confidence: 91%

“…These results are in agreement with the report presented by Campos et al (2005), where hybrid combinations of C. chinense and C. annuum produced either no fruits or fruits with no viable seeds, as observed by Pickersgill (1993) as well. Falusi and Morakinyo (1994) also reported low percentage success (0%-11.4%) in both inter and intra specific cross in the genus Capsicum. The percentage fruit set observed in this study were lower than reported by Ribeiro and Melo (2005) for the cross between genotypes of C. chinense with C. annuum with fruit set rate of 73.5% to 100%, using C. chinense as female parent and 87.5% to 91.5% in reciprocal crosses.…”

Section: Discussionmentioning

confidence: 97%

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Pollen Grain and Hybridization Studies in the Genus <i>Capsicum</i>

Olatunji

Morakinyo

2016

Not Sci Biol

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The current study aimed to evaluate the pollen viability of the commonly cultivated varieties of Capsicum species and assessed the potentials for gene exchange among the genotypes through hybridization studies. Capsicum annuum var. abbreviatum, C. annuum var. acuminatum, C. annuum var. grossum and C. frutescens var. baccatum were the species and varieties used in this study. The present findings indicated that the percentage of pollen viability varied in the studied Capsicum genotypes. The highest pollen viability was obtained in C. annuum var. abbreviatum (96.3%), followed by C. annuum var. grossum (95%), and C. annuum var. acuminatum (91.1%). The lowest pollen viability was recorded in C. frutescens var. baccatum (86.2%). The pollen viability was high in most varieties indicating that meiosis is normal, resulting in viable pollen grains. Several intraspecific and interspecific crosses were performed among the Capsicum genotypes and three putative hybrid fruits were produced. Percentage successes obtained in the crosses were low and comparable in both intra and inter-specific crosses. In the entire crosses pattern, pollination success of 10% was recorded for C. frutescens var. baccatum and C. annuum var. acuminatum. Knowing the nature and viability of pollen grains may help in predicting the success rate of hybridization and the successful crosses between C. frutescens var. baccatum and C. annuum var. acuminatum suggest that these two varieties are the closest genetically.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 97%

Pollen Grain and Hybridization Studies in the Genus <i>Capsicum</i>

Olatunji

Morakinyo

2016

Not Sci Biol

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“…and S. melongena x S. integrifolium (Grigg et al, 1988;Ali et al, 1992;Falusi and Morakinyo, 1994). Translocations and chromosome pairing could contribute to low hybrid fertility (Kumar et al, 1987;Pickersgill, 1997;Monteiro et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Production of interspecific hybrids between commercial cultivars of the eggplant (Solanum melongena L.) and its wild relative S. torvum

Jutamas

Wei²,

Lee³

et al. 2013

Genet. Mol. Res.

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ABSTRACT.Interspecific hybrids between cultivars of eggplant (Solanum melongena L.) and its wild relative S. torvum, which has disease resistance and desirable traits for crop improvement, were obtained by cross-hybridization and embryo rescue. Twenty-one hybrid progenies were obtained and examined based on morphological traits, RAPD and ISSR markers. Five of them were confirmed to be true interspecific hybrids. Eighteen and 14 bands from 7 RAPD and 14 ISSR primers, respectively, were polymorphic and present in all five hybrid seedlings and their parents. The morphological characteristics of leaf margin, inflorescence type and spine positions of the five seedlings were intermediate to the parents. These interspecific hybrids had low pollen viability, probably due to abnormal meiosis.

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“…This was ascertained by Morakinyo and Falusi (1992). The higher the percentage success from the crosses carried out, the higher the genetic relatedness or the closer the genetic relationship of the individuals (Falusi and Morakinyo, 1994).…”

Section: Resultsmentioning

confidence: 99%

Determination of the relatedness, ease of hybridization and gene exchange among members of the genus Capsicum in Nigeria

2020

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The fruit of Capsicum plants have a variety of names depending on place and type. This research was focused at studying the exchange of genes amongst members of the genus Capsicum in Nigeria. The process of interspecific and intervarietal hybridization of two (2) species of the genus Capsicum; C. annuum and C. frutasense were carried out and the results show that most of the studied attributes like arrangement of leaves, shape of leaves, leaf density were undetermined while majority with distinct changes follow maternal inheritance. There were less successes among the interspecific crosses and high successes between varietal crosses ranging from 19.5% to 2.4% for the inter-varietal cross and 9.3% to 2.4% for interspecific crosses. This indicates that there are more hybridization barriers among interspecific hybridization than inter-varietal hybridization. The closely related species and varieties had higher percentage success of hybridization and vice versa. Characters such as Hypocotyl colour had partial dominance. Erect flower position is dominant in W and hybrid T*W while pendant is recessive. Red fruit colour at maturity, green fruit stalk colour was dominant while yellow was recessive. A good knowledge of how related species of the genus Capsicum are, the easier it will enable researchers to hybridize and improve the genus.

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Intra and interspecific hybridization in the genus "capsicum"

Cited by 4 publications

References 0 publications

Pollen Grain and Hybridization Studies in the Genus <i>Capsicum</i>

Pollen Grain and Hybridization Studies in the Genus <i>Capsicum</i>

Production of interspecific hybrids between commercial cultivars of the eggplant (Solanum melongena L.) and its wild relative S. torvum

Determination of the relatedness, ease of hybridization and gene exchange among members of the genus Capsicum in Nigeria

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