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《Jiangsu Journal of Agricultural Sciences》 1993-04
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Studies on Karyotypes and C-banded Chromosome Profiles of Chilo suppressalts,Tryporyza incertulas and Cnaphalocrocis medinalis

Fang Jichao , Tu Chengwen and Zhang Deyu Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 004 Institute of Agrobiological Genetics and Physiology, Jiangsu Academy of Agricultural Sciences, Nanjing, 004  
The karyotypes and somatic chromosome C-banding patterns in mitotic metaphases of rice stemborer (Chilo suppressalis Walker), yellow stemborer (Tryporyza incertulas Walker) and leaf folder (Cnaphalocrocis medinalis Guenee) were analyzed by C-banding technique. It was found that 1 the sex determination of both the stemborers and the leaf folder were all of XY type, the X sexual chromosomes being submetacentromeric and the Y telo-centromer-ic ; the Y chromosome of both the stemborers homogenously paired with partial long-arm of the X chromosome next to its centromeres, while the Y chromosome of the leaf folder paired with the whole short-arm of its X chromosome in spermatocyte meiosis(Fig. 2 a and b) ; (3) the 2n karyotype of Chilo suppressalis consisted of 5 pairs of autosomes (AA) plus the sexual chromosomes XX (female) or XY (male), one pair of the autosomes (No. Dhaving metacentro-meres and the others having telocentromeres (Fig. 1 I a and I a)j (4) the 2n karyotype of T. incertulas consisted of 6 pairs of AA plus the XX in female or the XY in male, all the A A having telocentromeres (Fig. 1Ib and I b) (5) the 2n karyotype of C. medinalis consisted of 4 pairs of AA plus the XX in female or the XY in male, where all the A A had telocentromeres (Fig.1Ie and I c). The chromosome C-ibanding profiles of the three insect pests were established and the interspecific relationships between the pests and the evolution of their chromosomes discussed (Fig. 3).
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【Citations】
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1 Zhong Shaobin Xu Jie Jiang Jiandong Yao Jingxia(Institute of Agrobiological Genetics and Physiology,Jiangsu Academy oj Agricultural Sciences,Nanjing);Recognition of All Chromosomes and Chromosomal Changes in Common Wheat (Triticum aestivum L.) Using C-banding[J];Acta Genetica Sinica;1989-06
【Co-citations】
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1 Zhong Shaobin, Zhong Xiaoxian and Yao Jingxia Authors'address:Institute of Agrobiological Genetics and physiology,Jiangsu Academy of Agricultural Sciences,Nanjing 210014;Cytological Identification of a Newly Developed 5B-NuIii-5D-Tetrasomic Line[J];Jiangsu Journal of Agricultural Sciences;1991-01
2 She Chaowen (Department of Biology Huaihua Teacher's college, Hunan 418008);ADVANCES IN THE APPLICATION OF PLANT CHROMOSOME C-BANDING[J];JOURNAL OF GUIZHOU NORMAL UNIVERSITY(NATURAL SCIENCE);1996-03
3 ZHANG Xu 1,2 ,ZANG Yu hui 2 ,ZHONG Shao bin 1 ,LIU Chao hui 1 , QIN Jun chuan 2 ,YAO Jing xia 1 (1.Institute of Agriobiological Genetics and Physiology,Jiangsu Academy of Agricultural Sciences, Nangjing, 210014, China; 2;ANALYSIS OF CHROMOSOMES OF TRITICUM ARARATICUM BY USING C-BANDING AND N-BANDING[J];JOURNAL OF NAIJING UNIVERSITY (NATURAL SCIENCES);2000-02
4 Mi Fugai;Li Ruifen;Lu Xiaoping;Jia Xiaoyan(Dept. of Grassland scieuce, Inner Mongolia Institute of Agriculture and Animal Hasbandrg Huhhot 010018);A STUDY ON PLANT CHROMOSOME STAINING TECHNIGUES[J];Journal of Inner Mongolia Institute of Agriculture and Animal Husbandry;1997-03
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【Co-references】
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1 Fang Jichao;Sun Jianzhong;Xia Liyu;Du Zhengwen(Institute of Plant Protection,Jiangsu Academy of Agricultural Sciences,Nanjing 210014);STUDIES ON PROFILES OF TOXICITY AND EFFICACY OF PROTHIOPHOS AGAINST RICE YELLOW STEMBORER TRYORYZA INCERTULAS[J];SCIENTIA AGRICUTURA SINICA;1995-02
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