MORPHOLOGICAL CHARACTERISTICS OF H. TUBEROSUS CHROMOSOMES IN COMPARISON WITH H. ANNUUS

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ZOHDI AGHDAM M.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2012 | Volume:4 | Issue:16 Page(s): 77-90

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Title

MORPHOLOGICAL CHARACTERISTICS OF H. TUBEROSUS CHROMOSOMES IN COMPARISON WITH H. ANNUUS

Author(s)

ZOHDI AGHDAM M. | Issue Writer Certificate

Keywords

CARYOTYPEQ2

CHROMOSOMEQ3

CYTOGENETICQ3

GENOMEQ3

Abstract

In this research CYTOGENETICal and agricultural characteristic of H. tuberosus and H. annuus including chromosomal morphology‚ shape‚ size‚ number of satellite CHROMOSOMEs were studied. In caryotypic analysis of H. tuberosus it showed that this species with GENOME formula of 2n = 6x = 102 is a hexaploid. In this species the average length of haploid CHROMOSOME set was 230.415±3.311 (m). The biggest CHROMOSOME with the length of 5.767±0.019 (m) and relative length of 2.503±0.008 % was determined as sub acrocentric. The smallest CHROMOSOME was metacentric with the length of 3.48±0.032 (m). Out of 51 pairs of CHROMOSOMEs 34 were identified as metacentric‚ 14 Pairs sub metacentric and 3 pairs sub acrocentric. Among them 3 pairs of satellite CHROMOSOMEs were observed. The biggest arm ratio index was obtained for CHROMOSOME number of 33‚ 3.265±0.327 (m). The caryotypic analysis of H. annuus showed that it was a diploid species 2n = 2x = 34. Average length of haploid CHROMOSOME set was 75.682±2.995 (m). The CHROMOSOME number 1 had the biggest length 6.033±0.341 (m) with the relative length of 7.939±0.285 % and was metacentric. The smallest CHROMOSOME was sub metacentric with the length of 3.563±0.208 (m). Out of 17 pairs of CHROMOSOMEs‚ 11 pairs were metacentric‚ 2 pairs sub metacentric and 4 pairs were sub acrocentric. Among them 2 pairs of satellite were observed. In the study of arm ratio index‚ the biggest arm ratio index was obtained for CHROMOSOME 15‚ 5.634±0.544 and was sub acrocentric. The caryotypic analysis of these two species showed that there were some differences in the CHROMOSOMEs morphology‚ number and kind of metacentric‚ sub metacentric and sub acrocentric‚ number of satellite‚ arm ratio index and chromosomal formula.

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APA: Copy

ZOHDI AGHDAM, M.. (2012). MORPHOLOGICAL CHARACTERISTICS OF H. TUBEROSUS CHROMOSOMES IN COMPARISON WITH H. ANNUUS. JOURNAL OF RESEARCH IN CROP SCIENCES, 4(16), 77-90. SID. https://sid.ir/paper/167897/en

Vancouver: Copy

ZOHDI AGHDAM M.. MORPHOLOGICAL CHARACTERISTICS OF H. TUBEROSUS CHROMOSOMES IN COMPARISON WITH H. ANNUUS. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2012;4(16):77-90. Available from: https://sid.ir/paper/167897/en

IEEE: Copy

M. ZOHDI AGHDAM, “MORPHOLOGICAL CHARACTERISTICS OF H. TUBEROSUS CHROMOSOMES IN COMPARISON WITH H. ANNUUS,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 4, no. 16, pp. 77–90, 2012, [Online]. Available: https://sid.ir/paper/167897/en

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