Mating system parameters in species of genus Prosopis (Leguminosae)

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The section Algarobia of genus Prosopis involves important natural resources in arid and semiarid regions of the world. Their rationale use requires a better knowledge of their biology, genetics and mating system. There are contradictory information about their mating system. Some authors claim they...

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Autores principales: Bessega, C., Ferreyra, L., Julio, N., Montoya, S., Saidman, B., Vilardi, J.C.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2000
Materias:
alcohol dehydrogenase
aminopeptidase
esterase
glutamate dehydrogenase
isocitrate dehydrogenase
oxidoreductase
phosphogluconate dehydrogenase
article
gene structure
genetic heterogeneity
homozygote
mating
nonhuman
plant
Alleles
Gene Frequency
Genotype
Heterozygote
Inbreeding
Isoenzymes
Models, Genetic
Pollen
Reproduction
Rosales
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00180661_v132_n1_p19_Bessega
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paperaa:paper_00180661_v132_n1_p19_Bessega
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spelling paperaa:paper_00180661_v132_n1_p19_Bessega2023-06-12T16:42:02Z Mating system parameters in species of genus Prosopis (Leguminosae) Hereditas 2000;132(1):19-27 Bessega, C. Ferreyra, L. Julio, N. Montoya, S. Saidman, B. Vilardi, J.C. alcohol dehydrogenase aminopeptidase esterase glutamate dehydrogenase isocitrate dehydrogenase oxidoreductase phosphogluconate dehydrogenase article gene structure genetic heterogeneity homozygote mating nonhuman plant Alleles Gene Frequency Genotype Heterozygote Inbreeding Isoenzymes Models, Genetic Pollen Reproduction Rosales The section Algarobia of genus Prosopis involves important natural resources in arid and semiarid regions of the world. Their rationale use requires a better knowledge of their biology, genetics and mating system. There are contradictory information about their mating system. Some authors claim they are protogynous and obligate outcrosser. However, some evidence have been shown indicating that they might not be protogynous and that they might be somewhat self-fertile. The current paper analyses genetic structure and mating system parameters in populations of seven species of this section from South and North America based on isozyme data. In all species a significant homozygote excess was found in the offspring population but not in mother plant genotypes. Multilocus and mean single locus outcrossing rates (tm, ts) indicated that about 15 % selfing can occur in the studied populations. The heterogeneity between pollen and ovule allele frequencies was low suggesting population structuration, in agreement with the estimates of correlation of tm within progeny (rt) and correlation of outcrossed paternity (rp). The difference of F(IS) estimates between offspring and mother plants suggest some selection favouring heterozygotes between seedling and adult stages. Fil:Bessega, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ferreyra, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Saidman, B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vilardi, J.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00180661_v132_n1_p19_Bessega
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic alcohol dehydrogenase
aminopeptidase
esterase
glutamate dehydrogenase
isocitrate dehydrogenase
oxidoreductase
phosphogluconate dehydrogenase
article
gene structure
genetic heterogeneity
homozygote
mating
nonhuman
plant
Alleles
Gene Frequency
Genotype
Heterozygote
Inbreeding
Isoenzymes
Models, Genetic
Pollen
Reproduction
Rosales
spellingShingle alcohol dehydrogenase
aminopeptidase
esterase
glutamate dehydrogenase
isocitrate dehydrogenase
oxidoreductase
phosphogluconate dehydrogenase
article
gene structure
genetic heterogeneity
homozygote
mating
nonhuman
plant
Alleles
Gene Frequency
Genotype
Heterozygote
Inbreeding
Isoenzymes
Models, Genetic
Pollen
Reproduction
Rosales
Bessega, C.
Ferreyra, L.
Julio, N.
Montoya, S.
Saidman, B.
Vilardi, J.C.
Mating system parameters in species of genus Prosopis (Leguminosae)
topic_facet alcohol dehydrogenase
aminopeptidase
esterase
glutamate dehydrogenase
isocitrate dehydrogenase
oxidoreductase
phosphogluconate dehydrogenase
article
gene structure
genetic heterogeneity
homozygote
mating
nonhuman
plant
Alleles
Gene Frequency
Genotype
Heterozygote
Inbreeding
Isoenzymes
Models, Genetic
Pollen
Reproduction
Rosales
description The section Algarobia of genus Prosopis involves important natural resources in arid and semiarid regions of the world. Their rationale use requires a better knowledge of their biology, genetics and mating system. There are contradictory information about their mating system. Some authors claim they are protogynous and obligate outcrosser. However, some evidence have been shown indicating that they might not be protogynous and that they might be somewhat self-fertile. The current paper analyses genetic structure and mating system parameters in populations of seven species of this section from South and North America based on isozyme data. In all species a significant homozygote excess was found in the offspring population but not in mother plant genotypes. Multilocus and mean single locus outcrossing rates (tm, ts) indicated that about 15 % selfing can occur in the studied populations. The heterogeneity between pollen and ovule allele frequencies was low suggesting population structuration, in agreement with the estimates of correlation of tm within progeny (rt) and correlation of outcrossed paternity (rp). The difference of F(IS) estimates between offspring and mother plants suggest some selection favouring heterozygotes between seedling and adult stages.
format Artículo
Artículo
publishedVersion
author Bessega, C.
Ferreyra, L.
Julio, N.
Montoya, S.
Saidman, B.
Vilardi, J.C.
author_facet Bessega, C.
Ferreyra, L.
Julio, N.
Montoya, S.
Saidman, B.
Vilardi, J.C.
author_sort Bessega, C.
title Mating system parameters in species of genus Prosopis (Leguminosae)
title_short Mating system parameters in species of genus Prosopis (Leguminosae)
title_full Mating system parameters in species of genus Prosopis (Leguminosae)
title_fullStr Mating system parameters in species of genus Prosopis (Leguminosae)
title_full_unstemmed Mating system parameters in species of genus Prosopis (Leguminosae)
title_sort mating system parameters in species of genus prosopis (leguminosae)
publishDate 2000
url http://hdl.handle.net/20.500.12110/paper_00180661_v132_n1_p19_Bessega
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AT julion matingsystemparametersinspeciesofgenusprosopisleguminosae
AT montoyas matingsystemparametersinspeciesofgenusprosopisleguminosae
AT saidmanb matingsystemparametersinspeciesofgenusprosopisleguminosae
AT vilardijc matingsystemparametersinspeciesofgenusprosopisleguminosae
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