Crossability and evaluation of incompatibility barriers in crosses between Capsicum species
The objectives of this study were to estimate the crossability rate in combinations of and assess the occurrence of incompatibility barriers between Capsicum species. The species C. annuum, C. chinense, C. frutescens, C. baccatum var. pendulum, and C. baccatum var. baccatum were crossed and the number of hand-pollinations and of resulting fruits and plants was registered. The resulting hybrids were evaluated for their pollen viability and in the crosses that produced no hybrids, the in vivo germination of pollen grains was assessed. Some crosses generated hybrids, while others produced no fruit or, despite generating fruits, no plants grew from them. The crossability rate between species of the complex C. annuumand C. baccatumranged from 2.2% to 3.7%, and was 14.6% between species of the complex C. annuum.A pre-fertilization barrier was observed in the non-germination of pollen grains, as well as post-fertilization barriers consisting of embryo death, lack of vigor and hybrid sterility
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Crop Breeding and Applied Biotechnology
2015
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oai:scielo:S1984-703320150003001392015-09-29Crossability and evaluation of incompatibility barriers in crosses between Capsicum speciesMartins,Kellen CoutinhoPereira,Telma Nair SantanaSouza,Sérgio Alessandro MachadoRodrigues,RosanaAmaral Junior,Antônio Teixeira do Interspecific hybridization peppers sweet pepper germination pollen grains The objectives of this study were to estimate the crossability rate in combinations of and assess the occurrence of incompatibility barriers between Capsicum species. The species C. annuum, C. chinense, C. frutescens, C. baccatum var. pendulum, and C. baccatum var. baccatum were crossed and the number of hand-pollinations and of resulting fruits and plants was registered. The resulting hybrids were evaluated for their pollen viability and in the crosses that produced no hybrids, the in vivo germination of pollen grains was assessed. Some crosses generated hybrids, while others produced no fruit or, despite generating fruits, no plants grew from them. The crossability rate between species of the complex C. annuumand C. baccatumranged from 2.2% to 3.7%, and was 14.6% between species of the complex C. annuum.A pre-fertilization barrier was observed in the non-germination of pollen grains, as well as post-fertilization barriers consisting of embryo death, lack of vigor and hybrid sterilityinfo:eu-repo/semantics/openAccessCrop Breeding and Applied BiotechnologyCrop Breeding and Applied Biotechnology v.15 n.3 20152015-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000300139en10.1590/1984-70332015v15n3a25 |
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Martins,Kellen Coutinho Pereira,Telma Nair Santana Souza,Sérgio Alessandro Machado Rodrigues,Rosana Amaral Junior,Antônio Teixeira do |
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Martins,Kellen Coutinho Pereira,Telma Nair Santana Souza,Sérgio Alessandro Machado Rodrigues,Rosana Amaral Junior,Antônio Teixeira do Crossability and evaluation of incompatibility barriers in crosses between Capsicum species |
author_facet |
Martins,Kellen Coutinho Pereira,Telma Nair Santana Souza,Sérgio Alessandro Machado Rodrigues,Rosana Amaral Junior,Antônio Teixeira do |
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Martins,Kellen Coutinho |
title |
Crossability and evaluation of incompatibility barriers in crosses between Capsicum species |
title_short |
Crossability and evaluation of incompatibility barriers in crosses between Capsicum species |
title_full |
Crossability and evaluation of incompatibility barriers in crosses between Capsicum species |
title_fullStr |
Crossability and evaluation of incompatibility barriers in crosses between Capsicum species |
title_full_unstemmed |
Crossability and evaluation of incompatibility barriers in crosses between Capsicum species |
title_sort |
crossability and evaluation of incompatibility barriers in crosses between capsicum species |
description |
The objectives of this study were to estimate the crossability rate in combinations of and assess the occurrence of incompatibility barriers between Capsicum species. The species C. annuum, C. chinense, C. frutescens, C. baccatum var. pendulum, and C. baccatum var. baccatum were crossed and the number of hand-pollinations and of resulting fruits and plants was registered. The resulting hybrids were evaluated for their pollen viability and in the crosses that produced no hybrids, the in vivo germination of pollen grains was assessed. Some crosses generated hybrids, while others produced no fruit or, despite generating fruits, no plants grew from them. The crossability rate between species of the complex C. annuumand C. baccatumranged from 2.2% to 3.7%, and was 14.6% between species of the complex C. annuum.A pre-fertilization barrier was observed in the non-germination of pollen grains, as well as post-fertilization barriers consisting of embryo death, lack of vigor and hybrid sterility |
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Crop Breeding and Applied Biotechnology |
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2015 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332015000300139 |
work_keys_str_mv |
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