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Identification and Validation of a Novel Major QTL Controlling Leaf Pubescence in the Chinese Wheat Landrace 'Baimaomai'.
- Source :
- Agronomy; Nov2021, Vol. 11 Issue 11, p2237, 1p
- Publication Year :
- 2021
-
Abstract
- Leaf pubescence is an important trait closely associated with plant adaptability to specialized habitats. Baimaomai (BMM) is a wheat (Triticum aestivum L.) landrace originating from the high-altitude, drought-prone environment of Sichuan Province, China with long, dense leaf pubescence. A population of 234 recombinant inbred lines (F<subscript>10</subscript>) developed from the cross between Chuanmai104 (CM104), which lacks leaf pubescence, and BMM with pubescent leaves, was used to conduct a phenotypic evaluation of leaf pubescence. Three quantitative trait loci (QTLs) were detected on chromosome arms 7BS, 3DL and 3AL using a high-density wheat 50K single-nucleotide polymorphism array in four environments. The QTLs were designated QLp.saas-7BS, QLp.saas-3DL and QLp.saas-3AL. QLp.saas-3AL, derived from BMM, and QLp.saas-3DL, derived from CM104, were new minor-effect loci. QLp.saas-7BS, derived from BMM, was a novel major-effect locus detected in all environments and was localized in a 0.48 Mb interval on chromosome arm 7BS based on the wheat 'Chinese Spring' reference genome. QLp.saas-7BS explained up to 40.77% of the total phenotypic variance. KASP markers tightly linked to QLp.saas-7BS were developed and verified. The present results provide valuable information for further fine mapping, cloning, and marker-assisted selection with QLp.saas-7BS in wheat. [ABSTRACT FROM AUTHOR]
- Subjects :
- LOCUS (Genetics)
WHEAT
SINGLE nucleotide polymorphisms
PHENOTYPES
Subjects
Details
- Language :
- English
- ISSN :
- 20734395
- Volume :
- 11
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Agronomy
- Publication Type :
- Academic Journal
- Accession number :
- 153789033
- Full Text :
- https://doi.org/10.3390/agronomy11112237