Construction of a genetic linkage map and QTL analysis of fiber-related traits in upland cotton (Gossypium hirsutum L.)

Euphytica - Tập 144 - Trang 91-99 - 2005
Zheng-Sheng Zhang1, Yue-Hua Xiao1, Ming Luo1, Xian-Bi Li1, Xiao-Ying Luo1, Lei Hou1, De-Mou Li1, Yan Pei1
1Key Laboratory of Biotechnology & Crop Quality Improvement, Ministry of Agriculture, Southwest Agricultural University, Chongqing, P.R. China

Tóm tắt

A genetic linkage map with 70 loci (55 SSR, 12 AFLP and 3 morphological loci) was constructed using 117 F2 plants obtained from a cross between two upland cotton cultivars Yumian 1 and T586, which have relatively high levels of DNA marker polymorphism and differ remarkably in fiber-related traits. The linkage map comprised of 20 linkage groups, covering 525 cM with an average distance of 7.5 cM between two markers, or approximately 11.8% of the recombination length of the cotton genome. The present genetic linkage map was used to identify and map the quantitative trait loci (QTLs) affecting lint percentage and fiber quality traits in 117 F2:3 family lines. Sixteen QTLs for lint percentage and fiber quality traits were identified in six linkage groups by multiple interval mapping: four QTLs for lint percentage, two QTLs for fiber 2.5% span length, three QTLs for fiber length uniformity, three QTLs for fiber strength, two QTLs for fiber elongation and two QTLs for micronaire reading. The QTL controlling fiber-related traits were mainly additive, and meanwhile including dominant and overdominant. Several QTLs affecting different fiber-related traits were detected within the same chromosome region, suggesting that genes controlling fiber traits may be linked or the result of pleiotropy.

Tài liệu tham khảo

Frary, A., T.C. Nesbitt, A. Frary, S. Grandillo, E. van der Knaap, B. Cong, J. Liu, J. Meller, R. Elber, K.B. Alpert & S.D. Tanksley, 2000. fw2.2: A quantitative trait locus key to the evolution of tomato fruit size. Science 289: 85–88.

Fryxell, P.A., 1992. A revised taxonomic interpretation of Gossypium. Rheedea 2: 108–165.

Kohel, R.J., 1999. Cotton germplasm resources and the potential for improved fiber production and quality. In: A.S. Basra (ed.), Cotton Fibers, pp.167–182, The Haworth Press Inc, New York.

Rong, J.-K., C. Abbey, J.E. Bowers, C.L. Brubaker, C. Chang, W.-C. Peng, T.A. Delmonte, X.-L. Ding, J.J. Garza, B.S. Marler, C.H. Park, G.J. Pierce, K.M. Rainey, V.K. Rastogi, S.R. Schulze, N.L. Trolinder, J.F. Wendel, T.A. Wilkins, T.D. Williams-Coplin, R.A. Wing, R.J. Wright, X.-P. Zhao, L.-H. Zhu & A.H. Paterson, 2004. A 3347-locus genetic recombination map of sequence-tagged sites reveals features of genome organization, transmission and evolution of cotton (Gossypium). Genetics 166: 389–417.

Shappley, Z.W., J.N. Jenkins, W.R. Meredith Jr & J.C. McCarty, 1998a. An RFLP linkage map of upland cotton, Gossypium hirsutum L. Theor Appl Genet 97: 756–761.

Shappley, Z.W., J.N. Jenkins, J. Zhu & J.C. McCarty, 1998b. Quantitative trait loci associated with agronomic and fiber traits of upland cotton. J Cotton Sci 2: 153–163.

Van Ooijen, J.W. & R.E. Voorrips, 2001. JoinMap 3.0, Software for the calculation of genetic linkage maps. Plant Research International, Wageningen, the Netherlands.

Wang, S.-C., C.J. Basten & Z.-B. Zeng, 2004. Windows QTL Cartographer WinQtlcartV2.0. Statistical Genetics, North Carolina State University. http://statgen.ncsu.edu/qtlcart/WQTLCart.htm.