Photoperiodism and Genetic Control of the Long Juvenile Period in Soybean: A Review

Destro, Deonisio; Carpentieri-Pípolo, Valéria; Kiihl, Romeu Afonso de Souza; Almeida, Leones Alves de

doi:10.13082/1984-7033.v01n01a10

Cited by 48 publications

(55 citation statements)

References 38 publications

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“…An emerging concept is that the alternation between the predominant stimuli contributes to the plasticity and diversity of the control of the transition to the reproductive stage in plants, due to the antagonistic effects of flower‐inducing factors on floral repressors (Boss et al 2004). The concept is in agreement with previous studies in soybean, which showed that the genes controlling the juvenile period function in non‐overlapping parallel pathways to the genes controlling the photoperiodic response (reviewed by Destro et al 2001).…”

supporting

confidence: 92%

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Identification of Soybean Genes Involved in Circadian Clock Mechanism and Photoperiodic Control of Flowering Time by In Silico Analyses

Quecini

Zucchi

Baldin

et al. 2007

JIPB

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Glycine max is a photoperiodic short‐day plant and the practical consequence of the response is latitude and sowing period limitations to commercial crops. Genetic and physiological studies using the model plants Arabidopsis thaliana and rice (Oryza sativa) have uncovered several genes and genetic pathways controlling the process, however information about the corresponding pathways in legumes is scarce. Data mining prediction methodologies, including multiple sequence alignment, phylogenetic analysis, bioinformatics expression and sequence motif pattern identification, were used to identify soybean genes involved in day length perception and photoperiodic flowering induction. We have investigated approximately 330 000 sequences from open‐access databases and have identified all bona fide central oscillator genes and circadian photoreceptors from A. thaliana in soybean sequence databases. We propose a working model for the photoperiodic control of flowering time in G. max, based on the identified key components. These results demonstrate the power of comparative genomics between model systems and crop species to elucidate the several aspects of plant physiology and metabolism.

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supporting

confidence: 92%

“…Soybean is a vernalization‐unresponsive SD species (Summerfield and Roberts 1985) and classic genetic studies have demonstrated that the transition to the reproductive stage is controlled by separated genetic pathways determining the length of the juvenile period and the photoperiodic induction (Destro et al 2001).…”

Section: Discussionmentioning

confidence: 99%

Identification of Soybean Genes Involved in Circadian Clock Mechanism and Photoperiodic Control of Flowering Time by In Silico Analyses

Quecini

Zucchi

Baldin

et al. 2007

JIPB

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“…Paraná fl owered in less than 30 d when grown in 6, 8, 10 or 12 h photoperiods (Fig. Previously, Paraná and Paranagoina were reported to diff er only at the E6 locus (Bonato and Vello, 1999), but Paraná was later reported to have one other long juvenile gene, and the long juvenile phenotype required the presence of at least two long juvenile genes (Carpentieri-Pípolo et al, 2000, 2002Destro et al, 2001). Paraná fl owered later in the 4 h photoperiod.…”

Section: Resultsmentioning

confidence: 97%

“…juvenile trait by Brazilian researchers reported that up to fi ve genes can control this trait and that recessive alleles at two loci are necessary for the long juvenile trait (Destro et al, 2001).…”

Section: Long Juvenile Soybean Flowering Responses Under Very Short Pmentioning

confidence: 99%

Long Juvenile Soybean Flowering Responses under Very Short Photoperiods

Cober

2011

Crop Science

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Long juvenile (LJ) soybean [Glycine max (L.) Merr.] lines exhibit delayed flowering under short photoperiods. Two loci, J and E6, have been reported to control this response. The objectives of this work were to compare phenology of E6E6 and e6e6 isolines across a range of photoperiods, to determine the genetic control of the LJ trait during the introgression of e6 into an early maturity background, and to compare e6e6 and jj lines in short photoperiods. Flowering time of ‘Paraná’ (E6E6) and its LJ isoline ‘Paranagoiana’ (e6e6) was observed in photoperiods of 3 to 16 h. Both lines flowered late (about 100 d) in a 16 h photoperiod. Paraná flowered in less than 30 d in 6, 8, 10, and 12 h photoperiods. Paranagoiana responded to decreases in photoperiod from 12 to 4 h with earlier flowering, although always flowered a minimum of 5 d later than Paraná. The LJ trait in Paranagoiana was introgressed into OT94‐47 with selection for late flowering under 12 h photoperiods. From the initial cross to the third backcross, F2 populations exhibited a 15:1 early:late flowering ratio in 12 h photoperiods. A similar 15:1 ratio was observed in a cross between OT94‐47 and LJ PI 159925. In comparisons, under 3 to 12 h photoperiods, Paranagoiana and PI 159925 flowered similarly and later than Paraná. It appears that the LJ lines may have a 5 d juvenile period but flowering delays greater than 5 d are likely due to photoperiod responses to very short photoperiods (≥5 h).

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“…The level of technology used in this growing was already good. As of 1970, upon obtaining soybean lines with alleles that provide for a long juvenile period (Destro et al 2001, Pipolo et al 2002, growing spread to the central-west and then to the north of the country. Environmental conditions, such as soil fertility and physics after razing the cerrado (tropical savanna) vegetation, posed a great challenge for obtaining high yields.…”

Section: Yield Evolution In the Main Species Grown In Brazilmentioning

confidence: 99%