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Title: PHYSICAL BIN MAP OF EST ON WHEAT HOMOEOLOGOUS GROUP 4 CHROMOSOMES

Author
item MIFTAHUDIN - AGRONOMY-UNIV OF MO
item Ross, Kathleen
item MA, XEUFENG - AGRONOMY-UNIV OF MO
item MAHMOUD, AHMED - AGRONOMY-UNIV OF MO
item LAYTON, J - AGRONOMY-UNIV OF MO
item RODRIGUEZ, MIGUEL - AGRONOMY-UNIV OF MO
item CHIKMAWATI, TATIK - AGRONOMY-UNIV OF MO
item RAMALINGAM, J - AGRONOMY-UNIV OF MO
item FERIL, O - AGRONOMY-UNIV OF MO
item PATHAN, M - AGRONOMY-UNIV OF MO
item MOMOROVIC, GORDANA - UNIV OF BELGRADE
item NGUYEN, H - AGRONOMY-UNIV OF MO
item HOSSAIN, K - N DAKOTA STATE UNIV
item KALAVACHARLA, V - N DAKOTA STATE UNIV
item KIANIAN, S - N DAKOTA STATE UNIV
item Lazo, Gerard
item CHAO, SHIAOMAN - UNIV OF CA-DAVIS
item Anderson, Olin
item QI, L - KANSAS STATE UNIV
item GILL, B - KANSAS STATE UNIV
item LINKIEWICZ, A - AGRONOMY-UNIV OF CA-DAVIS
item DUBCOVSKY, J - AGRONOMY-UNIV OF CA-DAVIS
item AKHUNOV, E - AGRONOMY-UNIV OF CA-DAVIS
item DVORAK, J - AGRONOMY-UNIV OF CA-DAVIS
item DILBIRLIGI, M - WASHINGTON STATE UNIV
item GILL, K - WASHINGTON STATE UNIV
item PENG, J - COLORADO STATE UNIV
item LAPITAN, N L V - COLORADO STATE UNIV
item DAKE, T - PLANT BRDG-CORNELL UNIV
item SORRELLS, M - PLANT BRDG-CORNELL UNIV
item GONZALEZ, J - AGRONOMY-U OF MINNESOTA
item WENNERLIND, E - AGRONOMY-U OF MINNESOTA
item ANDERSON, J - AGRONOMY-U OF MINNESOTA
item FENTON, D - UNIV OF CA-RIVERSIDE
item CLOSE, T - UNIV OF CA-RIVERSIDE
item MCGUIRE, P - UNIV OF CA-DAVIS
item QUALSET, C - UNIV OF CA-DAVIS
item Gustafson, J

Submitted to: Plant and Animal Genome Conference
Publication Type: Abstract Only
Publication Acceptance Date: 12/15/2003
Publication Date: 1/10/2004
Citation: Miftahudin, Ross, K., Ma, X., Mahmoud, A., Layton, J., Rodriguez, M., Chikmawati, T., Ramalingam, J., Feril, O., Pathan, M.S., Momorovic, G.S., Nguyen, H.T., Hossain, K.G., Kalavacharla, V., Kianian, S.F., Lazo, G.R., Chao, S., Anderson, O.D., Qi, L., Gill, B.S., Linkiewicz, A.M., Dubcovsky, J., Akhunov, E.D., Dvorak, J., Dilbirligi, M., Gill, K.S., Peng, J., Lapitan, N., Dake, T., Sorrells, M.E., Gonzalez, J., Wennerlind, E., Anderson, J.A., Fenton, D., Close, T.J., Mcguire, P.E., Qualset, C.O., Gustafson, J.P. 2004. Physical bin map of est on wheat homoeologous group 4 chromosomes [abstract]. XII Plant and Animal Genome Conference. p. 407.

Interpretive Summary:

Technical Abstract: Expressed sequence tags (ESTs) from 47 wheat cDNA libraries have been mapped to wheat 'Chinese Spring' chromosome group 4. A total of 1670 ESTs with 2259 corresponding EST loci were mapped to all three genomes. The distribution of the mapped ESTs among the three homoeologous chromosomes was not the same, with 4B having the fewest EST loci mapped (643) compared to 4A (880) and 4D (713). This was opposite to what was actually observed when the total number of EST loci in the B genome (5857) was compared to those present in the A (5216) and D (5294) genomes. One possible explanation of this phenomenon could be that 4B contains a higher level of heterochromatin than 4A and 4D. The long arms contained more ESTs than the short arms and the proximal regions showed a higher number of ESTs than the distal regions. This study confirmed the complex structure of wheat chromosome 4A with the occurrence of two reciprocal translocations involving chromosome arm 4AL, 5AL, and 7BS as previsouly identified, but also indicated that two additional inversions occurred in the distal part of 4AS and the centromeric region of 4A. A consensus map among the genomes was developed based on the 321 unique ESTs for chromosome group 4 that only mapped to group 4 chromosomes. Good co-linearity was shown between wheat ESTs on homoeologous group 4 chromosome and rice chromosome 3. A few ESTs also showed homology with rice chromosomes 11 and 12.