Record Details

Molecular mapping of flowering time genes in chickpea (Cicer arietinum L.)

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/10718/
 
Title Molecular mapping of flowering time genes in chickpea (Cicer arietinum L.)
 
Creator Mallikarjuna, B P
Samineni, S
Thudi, M
Sajja, S
Khan, A W
Patil, A
Viswanatha, K P
Varshney, R K
Gaur, P M
 
Subject Chickpea
Genetics and Genomics
 
Description Flowering time is an important trait of chickpea that influences
crop adaptation to a given climate. Earliness in both flowering
time and maturity are important traits for increasing and
stabilizing chickpea productivity in short season environments
by avoiding end of season drought. A study was conducted to
identify genes/quantitative trait loci (QTLs) controlling flowering
time in chickpea using four F2 populations (ICCV 96029 × CDC
Frontier, ICC 5810 × CDC Frontier, BGD 132 × CDC Frontier and
ICC 16641 × CDC Frontier). Genetic studies revealed monogenic
control of flowering time in the crosses ICCV 96029 × CDC
Frontier, BGD 132 × CDC Frontier and ICC 16641 × CDC Frontier,
while in the cross ICC 5810 × CDC Frontier, it was under digenic
control with complementary gene action. The genetic linkage
maps developed from four crosses consisted of 75, 75, 68 and 67
markers spanning 248.8 cM, 331.4 cM, 311.1 cM, and 385.1 cM,
respectively. A consensus map spanning 363.8 cM with 109 loci
was developed by integrating four genetic maps. QTL mapping
detected major genomic regions controlling early flowering genes
efl-1 (Qefl1-2) on CaLG04, efl-2 (Qefl2-1, Qefl2-2, Qefl2-3, Qefl2-
4) on CaLG01, 03, 04 and 08, efl-3 (Qefl3-3) on CaLG08 and efl4
(Qefl4-1) on CaLG06. Analysis of QTL regions on CaLG04 and
CaLG08 provided several important candidate genes involved in
regulation of flowering time and homeotic functions. The identified
genomic regions with linked molecular markers can be deployed
for introgressing early flowering trait into elite chickpea
cultivars through marker-assisted breeding (MAB).
 
Date 2017-02
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/10718/1/252.pdf
Mallikarjuna, B P and Samineni, S and Thudi, M and Sajja, S and Khan, A W and Patil, A and Viswanatha, K P and Varshney, R K and Gaur, P M (2017) Molecular mapping of flowering time genes in chickpea (Cicer arietinum L.). In: InterDrought-V, February 21-25, 2017, Hyderabad, India.