التفاصيل البيبلوغرافية
| العنوان: |
Genetic Structure and Temporal Dynamics of a Colletotrichum graminicola Population in a Sorghum Disease Nursery. |
| المؤلفون: |
Rosewich UL, Pettway RE, McDonald BA, Duncan RR, Frederiksen RA |
| المصدر: |
Phytopathology [Phytopathology] 1998 Oct; Vol. 88 (10), pp. 1087-93. |
| نوع المنشور: |
Journal Article |
| اللغة: |
English |
| بيانات الدورية: |
Publisher: American Phytopathological Society] Country of Publication: United States NLM ID: 9427222 Publication Model: Print Cited Medium: Print ISSN: 0031-949X (Print) Linking ISSN: 0031949X NLM ISO Abbreviation: Phytopathology Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: |
Original Publication: [St. Paul, Minn., etc., American Phytopathological Society] |
| مستخلص: |
ABSTRACT Restriction fragment length polymorphisms (RFLPs) were used to study the population genetics of Colletotrichum graminicola (= C. sublineolum), the causal agent of sorghum anthracnose. Screening of 80 anonymous probes from a genomic library detected polymorphisms in 81% of 299 probe-enzyme combinations among nine international isolates. Seven single- or low-copy probes were used to study a collection of 411 isolates sampled during 1991 to 1993 from a sorghum disease nursery in Georgia. Nei's gene diversity was moderately high, with = 0.215 on average, while genotypic diversity was extremely low with an average genotypic diversity value of G = 1.513. Only nine multilocus haplotypes were identified, with one haplotype being present at a frequency of approximately 80% each year. Two other haplotypes were found at significant frequencies (4 to 10%). Allele and haplotype frequencies did not differ over the 3 years, indicating that this population was stable. Our findings suggest that genetic drift and gene flow were not major contributors to genetic structure, while asexual reproduction had a significant effect. |
| تواريخ الأحداث: |
Date Created: 20081024 Date Completed: 20121002 Latest Revision: 20220408 |
| رمز التحديث: |
20231215 |
| DOI: |
10.1094/PHYTO.1998.88.10.1087 |
| PMID: |
18944821 |
| قاعدة البيانات: |
MEDLINE |
