Genetic and molecular bases of photoperiod responses of flowering in soybean

Watanabe, Satoshi; Harada, Kyuya; Abe, Jun

doi:10.1270/jsbbs.61.531

Cited by 152 publications

(170 citation statements)

References 101 publications

Supporting

Mentioning

161

Contrasting

Unclassified

Order By: Relevance

“…Group II consisted of landraces that are grown as a short-season crop across Japan and the Korean peninsula (9-15), including Sakamotowase, which has the genotype e3e3E4E4 and a dysfunctional allele (e1-fs) at the E1 locus [19][20][21]. Group III consisted of landraces collected in northern Honshu, Japan (16)(17)(18)(19)(20)(21). Tsukue-4 (group IV, accession 22) and Otomewase (group V, accession 23) together formed a loose clade.…”

Section: Classification Of Photoperiod-insensitive Soybean Accessionsmentioning

confidence: 99%

See 1 more Smart Citation

Genetic Variation in Soybean at the Maturity Locus E4 Is Involved in Adaptation to Long Days at High Latitudes

Tsubokura

Matsumura

et al. 2013

Agronomy

Self Cite

View full text Add to dashboard Cite

Soybean (Glycine max) cultivars adapted to high latitudes have a weakened or absent sensitivity to photoperiod. The purposes of this study were to determine the molecular basis for photoperiod insensitivity in various soybean accessions, focusing on the sequence diversity of the E4 (GmphyA2) gene, which encodes a phytochrome A (phyA) protein, and OPEN ACCESSAgronomy 2013, 3 118 its homoeolog (GmphyA1), and to disclose the evolutionary consequences of two phyA homoeologs after gene duplication. We detected four new single-base deletions in the exons of E4, all of which result in prematurely truncated proteins. A survey of 191 cultivated accessions sourced from various regions of East Asia with allele-specific molecular markers reliably determined that the accessions with dysfunctional alleles were limited to small geographical regions, suggesting the alleles' recent and independent origins from functional E4 alleles. Comparison of nucleotide diversity values revealed lower nucleotide diversity at non-synonymous sites in GmphyA1 than in E4, although both have accumulated mutations at almost the same rate in synonymous and non-coding regions. Natural mutations have repeatedly generated loss-of-function alleles at the E4 locus, and these have accumulated in local populations. The E4 locus is a key player in the adaptation of soybean to high-latitude environments under diverse cropping systems.

show abstract

Section: Classification Of Photoperiod-insensitive Soybean Accessionsmentioning

confidence: 99%

“…The genetic mechanism of the photoperiod insensitivity varies among cultivars [16]. Genetic analyses have revealed that soybean cultivars and landraces that are adapted to the cool summers of northern Japan possess recessive genotypes at the E3 and E4 loci, namely e3e3e4e4 [20,21].…”

Section: Introductionmentioning

confidence: 99%

Genetic Variation in Soybean at the Maturity Locus E4 Is Involved in Adaptation to Long Days at High Latitudes

Tsubokura

Matsumura

et al. 2013

Agronomy

Self Cite

View full text Add to dashboard Cite

show abstract

“…is a typical short-day plant, requiring short days for the induction of flowering; therefore, identifying genetic differences in flowering conditioned by photoperiod is necessary to modify flowering time and extend the soybean growing range (Watanabe et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…This wide adaptability is most likely associated with the genetic diversity of the plant (Liu et al, 2008(Liu et al, , 2009 cultivars. These mutations may represent an important source of genes for the development of soybean cultivars adapted to different low-latitude regions or sowing periods in breeding programs (Thakare et al, 2010;Watanabe et al, 2012). The genetic control of flowering time under short-day conditions is determined by a genetic system that is different and independent from the one that determines flowering under long-day conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The genetic control of flowering time under short-day conditions is determined by a genetic system that is different and independent from the one that determines flowering under long-day conditions. Late flowering under short-day conditions is controlled by recessive alleles, whereas, under long-day conditions, it is dominant over early flowering (Liu et al, 2009;Watanabe et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inheritance of late flowering in natural variants of soybean cultivars under short-day conditions

Carpentieri-Pípolo

Almeida

Kiihl

et al. 2014

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to determine the inheritance of the long juvenile period trait in natural variants of the Doko, BR 9 (Savana), Davis, Embrapa 1 (IAS 5RC), and BR 16 soybean cultivars. Complete diallel crosses were made between the Doko and BR 16 cultivars and their variants. A 3:1 segregation ratio was observed in the F 2 populations of the 'Doko' x Doko-18T, 'Doko' x Doko-Milionária, 'Davis' x São Carlos, and 'BR 9 (Savana)' x MABR92-836 (Savanão) crosses, indicating that the long juvenile period trait is controlled by a pair of recessive genes. The difference in late flowering between the Doko cultivar and both of its variants was caused by a recessive spontaneous mutation at the same genetic locus. However, the variants Doko-18T and Doko-Milionária are identical mutants that share a pair of genes that control the long juvenile period under short-day conditions. These mutants can be used in breeding programs to develop cultivars adapted to low-latitude tropical regions.Index terms: Glycine max, breeding program, long juvenile period, low-latitude regions, natural mutation, photoperiod. Herança do florescimento tardio em variantes naturais de cultivares de soja em condições de dias curtosResumo -O objetivo deste trabalho foi determinar a herança do caráter período juvenil longo em variantes naturais das cultivares de soja Doko, BR 9 (Savana), Davis, Embrapa 1 (IAS 5RC) e BR 16. Foram realizados cruzamentos em dialelo completo entre as cultivares Doko e BR 16 e as suas variantes. Foi observada segregação 3:1 nas populações F 2 dos cruzamentos 'Doko' x Doko-18T, 'Doko' x Doko-Milionária, 'Davis' x São Carlos e 'BR 9 (Savana)' x MABR92-836 (Savanão), o que indica que o caráter período juvenil longo é controlado por um par de genes recessivos. A diferença de florescimento tardio entre a cultivar Doko e ambas as suas variantes foi causada por uma mutação espontânea recessiva no mesmo loco genético. Entretanto, as variantes Doko-18T e Doko-Milionária são mutantes idênticos que compartilham um par de genes que controlam o período juvenil longo em condições de dia curto. Esses mutantes podem ser usados em programas de melhoramento para desenvolver cultivares adaptadas a regiões tropicais de baixa latitude.Termos para indexação: Glycine max, programa de melhoramento, período juvenil longo, regiões de baixa latitude, mutação natural, fotoperíodo.

show abstract

Genetic control of flowering time in legumes

Weller¹,

Macknight²

2019

The Model Legume Medicago Truncatula

View full text Add to dashboard Cite

The timing of flowering, and in particular the degree to which it is responsive to the environment, is a key factor in the adaptation of a given species to various ecogeographic locations and agricultural practices. Flowering time variation has been documented in many crop legumes, and selection for specific variants has permitted significant expansion and improvement in cultivation, from prehistoric times to the present day. Recent advances in legume genomics have accelerated the process of gene identification and functional analysis, and opened up new prospects for a molecular understanding of flowering time adaptation in this important crop group. Within the legumes, two species have been prominent in flowering time studies; the vernalization-responsive long-day species pea (Pisum sativum) and the warm-season short-day plant soybean (Glycine max). Analysis of flowering in these species is now being complemented by reverse genetics capabilities in the model legumes Medicago truncatula and Lotus japonicus, and the emergence of genome-scale resources in a range of other legumes. This review will outline the insights gained from detailed forward genetic analysis of flowering time in pea and soybean, highlighting the importance of light perception, the circadian clock and the FT family of flowering integrators. It discusses the current state of knowledge on genetic mechanisms for photoperiod and vernalization response, and concludes with a broader discussion of flowering time adaptation across legumes generally.

show abstract

Genetic and molecular bases of photoperiod responses of flowering in soybean

Cited by 152 publications

References 101 publications

Genetic Variation in Soybean at the Maturity Locus E4 Is Involved in Adaptation to Long Days at High Latitudes

Genetic Variation in Soybean at the Maturity Locus E4 Is Involved in Adaptation to Long Days at High Latitudes

Inheritance of late flowering in natural variants of soybean cultivars under short-day conditions

Genetic control of flowering time in legumes

Contact Info

Product

Resources

About