| 000 | 02669nab a22003857a 4500 | ||
|---|---|---|---|
| 001 | G97443 | ||
| 003 | MX-TxCIM | ||
| 005 | 20171220113603.0 | ||
| 008 | 121211b |||p||p||||||| |z||| | | ||
| 024 | 8 | _ahttps://doi.org/10.1111/j.1439-0434.2012.01956.x | |
| 040 | _aMX-TxCIM | ||
| 041 | 0 | _aEn | |
| 100 | 1 | _aGyawali, S. | |
| 245 | 0 | 0 | _aGenetic structure of Cochliobolus sativus populations sampled from roots and leaves of barley and wheat in North Dakota |
| 260 | _c2012 | ||
| 500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0931-1785 | ||
| 520 | _aCommon root rot (CRR) and spot blotch, caused by Cochliobolus sativus (Ito and Kurib.) Drechsl. ex Dast., are important diseases of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) worldwide. However, the population biology of C. sativus is still poorly understood. In this study, the genetic structure of three C. sativus populations, consisting of isolates sampled respectively from barley leaves (BL), barley roots (BR) and wheat roots (WR) in North Dakota, was analysed with amplified fragment length polymorphism (AFLP) markers. A total of 127 AFLP loci were generated among 208 C. sativus isolates analysed with three primer combinations. Gene diversity (H = 0.277?0.335) were high in all three populations. Genetic variation among C. sativus individuals within population accounted for 74%, whereas 26% of the genetic variation was explained among populations. Genetic differentiation was high (ØPT = 0.261, corrected = 0.39), whereas gene flow (Nm) ranged from 1.27 to 1.56 among the three populations analysed. The multilocus linkage disequilibrium (LD) (= 0.076?0.117) was moderate in C sativus populations. Cluster analyses indicate that C. sativus populations differentiated according to the hosts (barley and wheat) and tissues (root and leaf) although generalists also exist in North Dakota. Crop breeding may benefit from combining genes for resistance against both specialists and generalists of C. sativus. | ||
| 546 | _aEnglish | ||
| 593 | _aCarelia Juarez | ||
| 595 | _aRPC | ||
| 650 | 1 | 0 | _aAmplified fragment length polymorphism |
| 650 | 1 | 0 |
_aBarley _91018 |
| 650 | 1 | 0 |
_aCochliobolus sativus _92193 |
| 650 | 1 | 0 | _aCommon root rot |
| 650 | 1 | 0 | _aGenetic differentiation |
| 650 | 1 | 0 | _aSpot blotch |
| 650 | 1 | 0 | _aWheat |
| 700 | 1 |
_aAdhikari, T.B., _ecoaut. |
|
| 700 | 1 |
_aBurlakoti, R.R., _ecoaut. |
|
| 700 | 1 |
_aNeate, S.M., _ecoaut. |
|
| 700 | 1 |
_aPuri, K.D., _ecoaut. |
|
| 700 | 1 |
_aShaobin Zhong, _ecoaut. |
|
| 773 | 0 |
_tJournal of Phytopathology _gv. 160, no. 11-12, p. 637-646 |
|
| 942 | _cJA | ||
| 999 |
_c29708 _d29708 |
||