2013
DOI: 10.1590/s0102-05362013000400010
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Abstract: This study characterised pollen grains morphologically and studied the genetic divergence between accessions based on morphopollinic characters. Seven accessions, including domesticated, semi-domesticated and wild species of Capsicum (C. annuum var. annuum, C. chinense, C. baccatum var. pendulum, C. frutescens, Capsicum annuum var. glabriusculum, C. baccatum var. baccatum and C. parvifolium), were cultivated in a greenhouse and their pollen grains collected and fixed during flowering. The pollen grains were ac… Show more

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Cited by 9 publications
(5 citation statements)
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“…De acordo com a definição dada por Ybert et al (1992) os grãos de pólen de P. peruviana deste estudo podem ser classificados como isopolares, por possuírem um único plano de corte em que ambos os lados permanecem simétricos e, ainda, diâmetros polar e equatorial com comprimentos distintos. Em geral, grãos de pólen isopolares estão presentes em grande número de espécies e gêneros desta família, a exemplo de dez espécies de Nicotiana estudadas por Collao-Alvarado et al (2016), vinte e três espécies de Cestrum palinologicamente descritas por Vignoli- Silva et al (2015); seis espécies de Solanum ocorrentes na Arábia Saudita (LASHIN, 2011); cinco espécies de Capsicum (MARTINS et al, 2013); e seis espécies de Brunfelsia (BATISTA-FRANKLIM; GONÇALVES-ESTEVES, 2002).…”
Section: Resultsunclassified
“…De acordo com a definição dada por Ybert et al (1992) os grãos de pólen de P. peruviana deste estudo podem ser classificados como isopolares, por possuírem um único plano de corte em que ambos os lados permanecem simétricos e, ainda, diâmetros polar e equatorial com comprimentos distintos. Em geral, grãos de pólen isopolares estão presentes em grande número de espécies e gêneros desta família, a exemplo de dez espécies de Nicotiana estudadas por Collao-Alvarado et al (2016), vinte e três espécies de Cestrum palinologicamente descritas por Vignoli- Silva et al (2015); seis espécies de Solanum ocorrentes na Arábia Saudita (LASHIN, 2011); cinco espécies de Capsicum (MARTINS et al, 2013); e seis espécies de Brunfelsia (BATISTA-FRANKLIM; GONÇALVES-ESTEVES, 2002).…”
Section: Resultsunclassified
“…Apertures are regions that delimit releasing material inside the PG (Erdtman, 1986). Based on their shape variation, apertures can be circular, be called pores, or be elongated, with a length greater than their width (elongated), thus being referred as colpi (Martins et al, 2013).…”
Section: Discussionmentioning
confidence: 99%
“…The exine appears to be clearly microechinate and perforate under SEM in C. annuum ( Halbritter 2016a ; Song et al 2019 ) and C. pubescens ( Bo and Carrizo García 2015 ; Halbritter 2016b ). The exine has been described as reticulate ( Murry and Eshbaugh 1971 ; Roubik and Moreno 1991 ), foveolate ( Martins et al 2013 ), psilate or faintly granulate ( Kayani et al 2018 ) and scabrate ( Barth and Duarte 2008 ), based on LM observations for some Capsicum species, which should be corroborated with SEM . Pollen morphology is lacking for most wild Capsicum species and more information is needed to evaluate the usefulness of pollen to distinguish species.…”
Section: Morphologymentioning
confidence: 98%
“…Pollen is yellow or white, trizonocolporate, spheroidal, prolate, prolate-spheroidal or oblate-spheroidal, with a triangular to circular outline in polar view. It is usually small, from 15 µm in C. rhomboideum ( Bo and Carrizo García 2015 ) to 18–24.73 µm in some domesticated species ( Dharamadhaj and Prakash 1978 ; Martins et al 2013 ; Adedeji and Akinniyi 2015 ; Bo and Carrizo García 2015 ; Kayani et al 2018 ; Yang et al 2018 ; Song et al 2019 ), but in other domesticated and wild species, sizes range from 25.75 to 38 µm (Murray and Eshbaugh 1971; Quagliotti 1979 ; Martins et al 2013 ). Pollen grains are shed in monads and at the binucleate stage ( Cochran 1938 ; Yaqub and Smith 1971 ; Dharamadhaj and Prakash 1978 ; Kim et al 2004 ; Bo and Carrizo García 2015 ) or trinucleate stage (e.g.…”
Section: Morphologymentioning
confidence: 99%