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A first insight into the genetics of maturity trait in Runner × Virginia types peanut background
Year:
2022
Source of publication :
Scientific Reports
Authors :
Hovav, Ran H.
;
.
Volume :
Co-Authors:
  • Srinivas Kunta, 
  • Pragna Parimi, 
  • Yael Levy, 
  • Chandrasekhar Kottakota, 
  • Ilan Chedvat, 
  • Ye Chu, 
  • Peggy Ozias-Akins 
  • Ran Hovav
Facilitators :
From page:
0
To page:
0
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Total pages:
1
)
Abstract:

'Runner' and 'Virginia', the two main market types of Arachis hypogaea subspecies hypogaea, differ in several agricultural and industrial characteristics. One such trait is time to maturation (TTM), contributing to the specific environmental adaptability of each subspecies. However, little is known regarding TTM's genetic and molecular control in peanut in general, and particularly in the Runner/Virginia background. Here, a recombinant inbred line population, originating from a cross between an early-maturing Virginia and a late-maturing Runner type, was used to detect quantitative trait loci (QTL) for maturity. An Arachis SNP-array was used for genotyping, and a genetic map with 1425 SNP loci spanning 24 linkage groups was constructed. Six significant QTLs were identified for the maturity index (MI) trait on chromosomes A04, A08, B02 and B04. Two sets of stable QTLs in the same loci were identified, namely qMIA04a,b and qMIA08_2a,b with 11.5%, 8.1% and 7.3%, 8.2% of phenotypic variation explained respectively in two environments. Interestingly, one consistent QTL, qMIA04a,b, overlapped with the previously reported QTL in a Virginia × Virginia population having the same early-maturing parent ('Harari') in common. The information and materials generated here can promote informed targeting of peanut idiotypes by indirect marker-assisted selection.

Note:
Related Files :
genetic linkage
plant genetics
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More details
DOI :
10.1038/s41598-022-19653-z
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
62407
Last updated date:
31/10/2022 16:47
Creation date:
31/10/2022 16:47
Scientific Publication
A first insight into the genetics of maturity trait in Runner × Virginia types peanut background
  • Srinivas Kunta, 
  • Pragna Parimi, 
  • Yael Levy, 
  • Chandrasekhar Kottakota, 
  • Ilan Chedvat, 
  • Ye Chu, 
  • Peggy Ozias-Akins 
  • Ran Hovav
A first insight into the genetics of maturity trait in Runner × Virginia types peanut background

'Runner' and 'Virginia', the two main market types of Arachis hypogaea subspecies hypogaea, differ in several agricultural and industrial characteristics. One such trait is time to maturation (TTM), contributing to the specific environmental adaptability of each subspecies. However, little is known regarding TTM's genetic and molecular control in peanut in general, and particularly in the Runner/Virginia background. Here, a recombinant inbred line population, originating from a cross between an early-maturing Virginia and a late-maturing Runner type, was used to detect quantitative trait loci (QTL) for maturity. An Arachis SNP-array was used for genotyping, and a genetic map with 1425 SNP loci spanning 24 linkage groups was constructed. Six significant QTLs were identified for the maturity index (MI) trait on chromosomes A04, A08, B02 and B04. Two sets of stable QTLs in the same loci were identified, namely qMIA04a,b and qMIA08_2a,b with 11.5%, 8.1% and 7.3%, 8.2% of phenotypic variation explained respectively in two environments. Interestingly, one consistent QTL, qMIA04a,b, overlapped with the previously reported QTL in a Virginia × Virginia population having the same early-maturing parent ('Harari') in common. The information and materials generated here can promote informed targeting of peanut idiotypes by indirect marker-assisted selection.

Scientific Publication
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