Genetic diversity and relationships among three Southern African Nguni cattle populations     

Madilindi  Matome A.  Banga  Cuthbert B.  Bhebhe  Evison  Sanarana  Yandisiwe P.  Nxumalo  Khanyisani S.  Taela  Maria G.  Magagula  Bongani S.  Mapholi  Ntanganedzeni O. 《Tropical animal health and production》2020,52(2):753-762

Tropical Animal Health and Production - The Nguni cattle breed has distinct populations that are adapted to the different ecological zones of Southern Africa. This study was carried out to assess...  相似文献   

Serological response of vaccinated sheep after challenge with Corynebacterium pseudotuberculosis     

SS SUTHERLAND  TM ELLIS  MJ PATON  AR MERCY 《Australian veterinary journal》1992,69(7):168-169

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Evaluation of prognostic indicators for canine primary immune‐mediated haemolytic anaemia and application of a scoring system for the determination of prognosis          下载免费PDF全文

SS Ke  GA Anderson  SL Connolly 《Australian veterinary journal》2015,93(4):93-98

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Progression of molecular and phenotypic diversification in resynthesized Brassica juncea (L) gene pool with determinate inflorescence     

Harjeevan Kaur  Shilpa Gupta  Nitin Kumar  Javed Akhatar  S. S. Banga 《Euphytica》2014,199(3):325-338

Indian mustard (Brassica juncea (L) Czern & Coss) is naturally indeterminate. Plants with determinate inflorescence were first discovered in the self progenies of B. juncea (AABB; 2n = 36), resynthesized by combining A-genome from B. napus (AACC; 2n = 38) and B-genome from B. carinata (BBCC; 2n = 34). In the determinate plants, apical meristems were transformed into pods. In contrast, the inflorescence in the indeterminate plants continues to grow indefinitely while producing peripheral flowers. Genotyping and morphological characterization of newly developed determinate gene pool (A₈) showed a rapid emergence and progression of genetic and phenotypic alterations which continued even after seven generations of selfing. A large number of determinate genotypes (125) were evaluated to establish agronomic potential of determinate B. juncea. A high proportion of determinate genotypes outperformed the best indeterminate checks, suggesting that critical productivity related traits like pod number, seed size and oil content were not a function of indeterminacy. As the gene for determinacy has also been introgressed in B. napus and B. carinata, the stage is now set for future breeding to aim at crop architectural modifications through determinacy in all three types of oilseed Brassicas grown in the world. Our studies emphasized the role of polyploidy as a major force of differentiation at both genotypic and phenotypic level. Although, there was no direct correlation between evolution of genetic and phenotypic diversities following polyploidization. We suggest the use of polyploidy as a plant breeding tool to benefit from de novo variation rather than restricting its use as a method to overcome sterility following wide hybridization alone.  相似文献