Academic Journal
Comparison of Anthracnose Resistance With the Presence of Two SCAR Markers Associated With the Rca2 Gene in Strawberry
| العنوان: | Comparison of Anthracnose Resistance With the Presence of Two SCAR Markers Associated With the Rca2 Gene in Strawberry |
|---|---|
| المؤلفون: | Miller-Butler, Melinda A., Smith, Barbara J., Kreiser, Brian R., Blythe, Eugene K. |
| المصدر: | Faculty Publications |
| بيانات النشر: | The Aquila Digital Community |
| سنة النشر: | 2019 |
| المجموعة: | The University of Southern Mississippi: The Aquila Digital Community |
| مصطلحات موضوعية: | Biology, Life Sciences |
| الوصف: | Strawberry anthracnose diseases are caused primarily by three Colletotrichum species: C. acutatum J.H. Simmonds, C. fragariae A.N. Brooks, and C. gloeosporioides (Penz.) Penz. & Sacc. Molecular markers are being used in breeding programs to identify alleles linked to disease resistance and other positive agronomic traits. In our study, strawberry cultivars and breeding germplasm with known anthracnose susceptibility or resistance to the three anthracnose-causing Colletotrichum species were screened for two sequence characterized amplified region (SCAR) markers linked to the Rca2 gene. The Rca2 resistant allele SCAR markers were associated with varying degrees of significance for a strawberry plant’s anthracnose resistance to C. fragariae but not to C. acutatum or C. gloeosporioides. Although the presence or absence of the markers associated with the Rca2 resistance gene is an imperfect indicator of anthracnose resistance, it may serve as a useful starting point in selecting germplasm for breeding programs. In the southeastern United States, anthracnose diseases of commercial strawberry (Fragaria ×ananassa Duch.) are caused primarily by three Colletotrichum species: C. acutatum, C. fragariae, and C. gloeosporioides (Maas, 1998). Colletotrichum acutatum incites two major anthracnose diseases on strawberry: anthracnose fruit rot and root necrosis (Howard et al., 1992; Mertely and Peres, 2012; Mertely et al., 2005), and has been found to remain latent on symptomless strawberry plants (Leandro et al., 2001). The devastating Colletotrichum crown rot (anthracnose crown rot) may be caused by C. gloeosporioides or C. fragariae (Howard et al., 1992; Peres et al., 2007; Smith, 1998; Smith and Black, 1987; Ureña-Padilla et al., 2002). Both C. gloeosporioides and C. fragariae may also cause anthracnose symptoms on all aerial parts of the strawberry plant. Fungicides are used routinely to control anthracnose diseases; however, frequent use of the same fungicides has resulted in their failure to control anthracnose as a ... |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| Relation: | https://aquila.usm.edu/fac_pubs/16425; https://aquila.usm.edu/context/fac_pubs/article/17736/viewcontent/comparison_of_anthracnose_resistance.pdf |
| الاتاحة: | https://aquila.usm.edu/fac_pubs/16425 https://aquila.usm.edu/context/fac_pubs/article/17736/viewcontent/comparison_of_anthracnose_resistance.pdf |
| رقم الانضمام: | edsbas.D984EA80 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |