Reproductive biology of Sporobolus phleoides Hack. (Poaceae), an endemic halophyte grass of Argentina

Sporobolus phleoides is an endemic grass of Argentina considered an important genetic resource for saline environments due to its salinity tolerance. Basic information about its reproductive biology is needed to adequately preserve its genetic variability. Hence, we studied its breeding system throu...

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Otros Autores: Richard, Geraldina Alicia, Pensiero, Jose Francisco, Cerino, María Carolina, Galati, Beatriz Gloria, Gutiérrez, Hugo Francisco
Formato: Artículo
Lenguaje:Inglés
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Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2017richardgeraldina.pdf
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245 1 |a Reproductive biology of Sporobolus phleoides Hack. (Poaceae), an endemic halophyte grass of Argentina 
520 |a Sporobolus phleoides is an endemic grass of Argentina considered an important genetic resource for saline environments due to its salinity tolerance. Basic information about its reproductive biology is needed to adequately preserve its genetic variability. Hence, we studied its breeding system through phenology, embryological analysis, and self-pollination versus open-pollination treatments in six populations collected from four provinces of Argentina. The results indicated that S. phleoides is mainly autogamous with a high fertility rate. Cleistogamous and chasmogamous spikelets are isomorphic and occur simultaneously on the inflorescence, with higher percentages of cleistogamy found in the basal region of the panicle. The average percentage of cleistogamy during the study period was 23 % for all populations evaluated. The development of the embryo sac follows the typical pattern of grasses and indicates normal sexual reproduction. This study provides the basis for programming genotype collections for gene banks and future plans of domestication. 
653 |a AUTOGAMY 
653 |a BREEDING SYSTEM 
653 |a CLEISTOGAMY 
653 |a SPOROBOLUS 
700 1 |9 66965  |a Richard, Geraldina Alicia  |u Cátedra de Botánica Sistemática Agronómica, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, RP Luis Kreder 2805, 3080HOF Esperanza, Argentina and Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina. geralrichard@gmail.com; grichard@santafe-conicet.gov.ar 
700 1 |9 66966  |a Pensiero, Jose Francisco  |u Cátedra de Botánica Sistemática Agronómica, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, RP Luis Kreder 2805, 3080HOF Esperanza, Argentina and Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina 
700 1 |9 66967  |a Cerino, María Carolina  |u Cátedra de Botánica Sistemática Agronómica, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, RP Luis Kreder 2805, 3080HOF Esperanza, Argentina and Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina 
700 1 |9 37472  |a Galati, Beatriz Gloria  |u Cátedra de Botánica General, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, C1417DSE Buenos Aires, Argentina y Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina 
700 1 |9 9786  |a Gutiérrez, Hugo Francisco  |u Cátedra de Botánica Sistemática Agronómica, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, RP Luis Kreder 2805, 3080HOF Esperanza, Argentina 
773 |t Plant systematics and evolution  |g Vol.301, no.7 (2015), p.1937–1945, tbls., fot. 
856 |f 2017richardgeraldina  |i En Reservorio:  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2017richardgeraldina.pdf  |x ARTI201804 
856 |u http://www.springer.com/  |z LINK AL EDITOR: 
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