Storability, longevity and rancidity: A genomic perspective on evolutionary constraints in major oilseeds: Storability, longevity and rancidity: A genomic perspective on evolutionary constraints in major oilseeds

RAMYA PARAKKUNNEL; BHOJARAJA NAIK K; GIRIMALLA VANISHREE; KT RAMYA; ANJITHA GEORGE; KV SRIPATHY; CS SHANTHARAJA; S ARAVINDAN; K UDAYA BHASKAR; A ANANDAN; SANJAY KUMAR

doi:10.56739/jor.v40iSpecialissue.145383

Authors

RAMYA PARAKKUNNEL ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
BHOJARAJA NAIK K ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065
GIRIMALLA VANISHREE ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
KT RAMYA ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
ANJITHA GEORGE ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
KV SRIPATHY ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
CS SHANTHARAJA ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
S ARAVINDAN ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
K UDAYA BHASKAR ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
A ANANDAN ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.
SANJAY KUMAR ICAR- Indian Institute of Seed Science, Regional Station, GKVK Campus, Bengaluru, India- 560065.

https://doi.org/10.56739/jor.v40iSpecialissue.145383

Keywords:

Lipase, Lipoxygenase, Oilseeds, Oleosin, Rancidity

Abstract

Limited longevity and accelerated chemical decomposition during storage are major problems found in oilseeds. In the present study the genomic composition of rancidity prone soybean and sunflower are compared with oil seeds with fairly good storability like sesame and olive. The chromosomal location, gene duplications, syntenic relationships, cis-element architecture and protein-protein interactions were studied with respect to 250 genes affecting lipid decomposition like lipases, lipoxygenases and oleosins. The expansion of lipoxygenases and phospholipaseD genes in soybean and sunflower indicate the importance of gene duplication in functional divergence. Moreover the effect of strong purifying selection in lipid decomposition genes was evident in shaping the genomic diversity.

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References

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Storability, longevity and rancidity: A genomic perspective on evolutionary constraints in major oilseeds