1998
DOI: 10.1104/pp.117.1.91
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Tomato Flower Abnormalities Induced by Low Temperatures Are Associated with Changes of Expression of MADS-Box Genes1

Abstract: Flower and fruit development in tomato (Lycopersicon esculentum Mill.) were severely affected when plants were grown at low temperatures, displaying homeotic and meristic transformations and alterations in the fusion pattern of the organs. Most of these homeotic transformations modified the identity of stamens and carpels, giving rise to intermediate organs. Complete homeotic transformations were rarely found and always affected organs of the reproductive whorls. Meristic transformations were also commonly obs… Show more

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Cited by 109 publications
(100 citation statements)
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“…In contrast to these genes, BoiAP1 from broccoli, a member of the Brassicaceae, is expressed in the stamen primordia (Carr and Irish, 1997). Moreover, expression of TM4, a SQUA homolog of tomato, is observed in all of the floral organs when plants are grown at low temperature (Lozano et al, 1998).…”
Section: Discussionmentioning
confidence: 94%
“…In contrast to these genes, BoiAP1 from broccoli, a member of the Brassicaceae, is expressed in the stamen primordia (Carr and Irish, 1997). Moreover, expression of TM4, a SQUA homolog of tomato, is observed in all of the floral organs when plants are grown at low temperature (Lozano et al, 1998).…”
Section: Discussionmentioning
confidence: 94%
“…The significance of pairwise comparisons between genotypes was assessed by using LSD test (P<0.01). SEM analysis were carried out as described by Lozano et al [25]. Plant tissue was fixed in FAEG and stored in 70% ethanol.…”
Section: Scanning-electron Microscopy (Sem)mentioning
confidence: 99%
“…Las bajas temperaturas también impiden el cuajado, en este caso el efecto se debe sobre todo a problemas en el gametofito masculino, problemas en la microsporogénesis, germinación del grano de polen, progresión del tubo polínico, etc. Además las bajas temperaturas provocan alteraciones en la morfología de la flor (Lozano et al, 1998). Junto a la temperatura, la humedad y la luminosidad también influyen en el cuajado.…”
Section: Influencia Ambiental En El Cuajado Del Fruto En Tomate Probunclassified
“…Además se producen alteraciones en el patrón de fusión de los órganos y en menor medida cambios de identidad de órganos florales. Todos estos cambios son más pronunciados en los verticilos reproductivos y están relacionados con cambios en niveles de expresión de factores de transcripción (Lozano et al, 1998).…”
Section: Influencia Ambiental En El Desarrollo Floralunclassified
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