Study of segregation distortion in the genes controlling hypocotyl and flowering stem pigmentation, resistance to rhizomania and RAPD markers in B.v. subsp. vulgaris B.v. subsp. maritima crosses
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Abstract: (3456 Views) |
In this study, a rhizomania resistant wild beet accession, Beta. vulgaris subsp. maritime, WB42 was crossed in pairs with susceptible male-strile lines, Beta. vulgaris subsp. vulgaris and F1, F2 and BC1 populations were obtained. Hypocotyl and flowering stem pigmentation of WB42 were red and those of the susceptible lines were green. Segregation ratio of hypocotyl and flowering stem pigmentation and resistance to rhizomania genes as well as RAPD markers were assessed in segregating populations. No segregation distortion were observed for the genes controlling hypocotyl and flowering stem pigmentation and resistance to rhizomania, in segregating populations. The segregation distortion for RAPD markers in this crosses were lower than the B. vulgaris B. vulgaris cross. It is concluded that the genetic background of B. v. subsp. maritima doesn’t influence the amount of the segregation distortion in B. v. subsp vulgaris B. v. subsp. maritima crosses. |
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Keywords: B.v. subsp. Beta vulgaris subsp. vulgaris Beta vulgaris subsp. maritima, RAPD markers, Resistance to rhizomania, Segregation distortion |
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Type of Study: Scientific & Research |
Subject:
Special Received: 2015/03/1 | Accepted: 2015/03/1 | Published: 2015/03/1
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