Identification of Quantitative Trait Loci (QTLs) and Candidate Genes for Seed Shape and 100-seed Weight in Soybean [ (L.) Merr.]

Overview

Journal Front Plant Sci

Date 2023 Jan 23

PMID 36684771

Authors

Rahul Kumar

Manisha Saini

Meniari Taku

Pulak Debbarma

Rohit Kumar Mahto

Ayyagari Ramlal

Deepshikha Sharma

Ambika Rajendran

Renu Pandey

Kishor Gaikwad

S K Lal

Akshay Talukdar

Affiliations

Soon will be listed here.

Abstract

Seed size and shape are important traits determining yield and quality in soybean. Seed size and shape are also desirable for specialty soy foods like tofu, natto, miso, and edamame. In order to find stable quantitative trait loci (QTLs) and candidate genes for seed shape and 100-seed weight, the current study used vegetable type and seed soybean-derived F and F mapping populations. A total of 42 QTLs were mapped, which were dispersed across 13 chromosomes. Of these, seven were determined to be stable QTLs and five of them were major QTLs, namely , and . Thirteen of the 42 QTLs detected in the current study were found at known loci, while the remaining 29 were discovered for the first time. Out of these 29 novel QTLs, 17 were major QTLs. Based on Protein Analysis Through Evolutionary Relationships (PANTHER), gene annotation information, and literature search, 66 genes within seven stable QTLs were predicted to be possible candidate genes that might regulate seed shape and seed weight in soybean. The current study identified the key candidate genes and quantitative trait loci (QTLs) controlling soybean seed shape and weight, and these results will be very helpful in marker-assisted breeding for developing soybean varieties with improved seed weight and desired seed shape.

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