Novel role of photoinsensitive alleles in adaptation of soybean [Glycine max (L.) Merr.] to rainfed short growing seasons of lower latitudes

Tripathi, Rachana; Agrawal, Nisha; Kumawat, Giriraj; Gupta, S. K.; Kuchlan, M.K.; Shivakumar, M.; Nataraj, Vennampally; Kuchlan, P.; Satpute, Gyanesh K.; Ratnaparkhe, Milind B.; Rajesh, V.; Chandra, Subhash; Bhatia, Virender Singh; Chand, Suresh

doi:10.1007/s10722-021-01142-3

Cited by 2 publications

(1 citation statement)

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“…In higher latitudes recessive photoperiodic alleles ( e1/e2/e3/e4 ) confer photo insensitivity for adaptation in higher latitude but information is lacking for allelic maturity model for lower latitude countries. Tripathi et al (2021) found that out of 101 Indian soybean varieties, 86 were photosensitive and had dominant alleles at ‘ E loci’. Four insensitive genotypic classes e1‐as/E2/E3/E4 , E1/e2/e3/E4 , E1/e2/E3/E4 and E1/E2/e3/E4 were observed in 1, 1, 2 and 15 varieties, respectively.…”

Section: Implications Of Identified Molecular Pathways On Soybean Bre...mentioning

confidence: 99%

Photoperiod trait: Insight in molecular mechanism for growth and maturity adaptation of soybean (Glycine max) to different latitudes

et al. 2022

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Soybeans cover a vast geographical region of 53°N to 40°S latitudes, but individual genotypes have a very narrow latitudinal adaptation of ~200 km due to photoperiodic limitations. Fourteen soybean maturity groups (MG0000‐X) of Northern America have genotypes adapted to very long (MG0000) to short (X) day length conditions. Photoperiod not only affects flowering but other agronomic traits also. Several maturity genes have been mapped, and 12 genes related to the photoperiodic network (E1, E2, E3, E4, J, FT2a, FT5a, Tof5, Tof11, Tof12, Tof16 and Tof18) have been functionally characterized. The role of the paralogues of functionally characterized genes (E1Ls, COs, PRRs, FULs, SOCs and FTs) is being recently elucidated. Allelic diversity at photoperiodic loci confers latitude specific adaptation. Molecular models (common allelic combination present in an MG) have been developed for different MG using E genes but require refining by the addition of other functionally characterized genes to fully explain the flowering and maturity, especially in MG V to X. Three interacting modules PHYA‐E1, GI‐CO and miRNA‐dependent have been developed to elucidate the flowering mechanism in soybean.

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Section: Implications Of Identified Molecular Pathways On Soybean Bre...mentioning

confidence: 99%

Photoperiod trait: Insight in molecular mechanism for growth and maturity adaptation of soybean (Glycine max) to different latitudes

et al. 2022

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Genetic adaptation of phenological stages in Chinese and European elite soybeans (Glycine max [L.] Merr.) across latitudes in Central Europe

Yao,

Pachner,

Rittler

et al. 2024

Plant Breeding

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Genetic adaptation of soybean phenological stages to high‐latitude long‐day environments is the major pre‐requisite for enhancing regional plant‐based protein production. Both E‐genes controlling flowering and growing environment determine timing of flowering and maturity, and E‐gene composition might differ between Chinese and European soybeans bearing the potential for improving adaptability. Therefore, 140 early maturity elite soybean cultivars of either Chinese or European origin were genotyped for the E1 to E4 flowering loci, and genotypes were tested across 17 European environments spanning a latitude range from 45 to 52°N in order to determine effects of various E‐allele combinations. Differences in E‐allele composition between Chinese and European cultivars were largest for the loci E1 and E3. Wild‐type alleles significantly delayed flowering, and effects of particular E‐alleles were depending on geographic latitude. Consequently, photoperiod‐insensitive E‐haplotypes carrying several non‐functional alleles proved to be suitable for cultivation in higher latitudes, whereas photoperiod‐sensitive late‐maturity E‐haplotypes are adapted to lower latitudes only. Thus, breeding for new E‐haplotypes through combining Chinese and European alleles could enhance the potential for further soybean adaptation to northern growing regions.

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Novel role of photoinsensitive alleles in adaptation of soybean [Glycine max (L.) Merr.] to rainfed short growing seasons of lower latitudes

Cited by 2 publications

References 41 publications

Photoperiod trait: Insight in molecular mechanism for growth and maturity adaptation of soybean (Glycine max) to different latitudes

Photoperiod trait: Insight in molecular mechanism for growth and maturity adaptation of soybean (Glycine max) to different latitudes

Genetic adaptation of phenological stages in Chinese and European elite soybeans (Glycine max [L.] Merr.) across latitudes in Central Europe

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