3 my $page=CXGN
::Page
->new('paran_lab.html','html2pl converter');
4 $page->header('Paran Lab');
8 <p dir="ltr" style="text-align: center"><span style=
9 "font-weight: bold"><span style="font-size: 14pt">The Paran
12 <p dir="ltr" style="text-align: center"><img src=
13 "/static_content/community/feature/paran_people.jpg" alt="" /></p>
15 <p dir="ltr" style="text-align: left; text-indent: 0.5000in">
18 <p dir="ltr" style="text-align: left"> </p>
20 <p dir="ltr" style="text-align: left"><span style=
21 "font-weight: bold">Research highlights</span></p>
23 <p dir="ltr" style="text-align: left; text-indent: 0.5000in">
24 The focus of my laboratory is the development of molecular
25 tools for the improvement of vegetable crops, in particular
26 pepper (<span style="font-style: italic">Capsicum</span>
29 <p dir="ltr" style="text-align: left; text-indent: 0.5000in">
30 Our first objective is the development of breeding lines
31 containing disease resistance genes and a concomitant
32 identification of molecular markers linked to these genes for
33 use in marker assisted selection. This work has been focused on
34 resistances to viruses such as TMV, TSWV (Jahn et al. 2000) and
35 CMV (Ben Chaim et al. 2001a) and to fungal diseases such as
36 powdery mildew caused by <span style=
37 "font-style: italic">Leveillula taurica</span>.</p>
39 <p dir="ltr" style="text-align: left; text-indent: 0.5000in">
40 Our second objective is the identification of the major genes
41 controlling fruit yield and quality parameters in pepper. We
42 associated the genes capsanthin capsorubin synthase and
43 phytoene synthase with mature fruit color changes (Popovsky and
44 Paran, 2000; Thorup et al. 2000). We identified a major
45 domestication gene, fruit polygalacturonase that is associated
46 with the soft flesh and deciduous fruit characters present in
47 wild <span style="font-style: italic">Capsicum</span> species
48 (Rao et al. 2003a). We mapped the <span style=
49 "font-style: italic">C</span> locus that is required for the
50 production of pungent fruit (Blum et al. 2002) and identified a
51 major quantitative trait locus (QTL) affecting the level of
52 pungency (Blum et al. 2003).</p>
54 <p dir="ltr" style="text-align: left; text-indent: 0.5000in">We
55 identified QTLs for major fruit quantitative traits such as
56 fruit weight, fruit shape, pericarp thickness and maturity (Ben
57 Chaim et al. 2001b, Ben Chaim et al. 2003a, Ben Chaim et al.
58 2003b, Rao et al. 2003b). The pepper QTL data allow us to
59 determine the degree of conservation of QTLs in <span style=
60 "font-style: italic">Capsicum</span> and among this genus and
61 other members of the Solanaceae family.</p>
63 <p dir="ltr" style="text-align: left"> </p><br />
65 <p dir="ltr" style="text-align: left"><span style=
66 "font-weight: bold">Sample results</span></p>
68 <p dir="ltr" style="text-align: center"><img src=
69 "/static_content/community/feature/paran_figure1.gif" alt="" /></p>
71 <p dir="ltr" style="text-align: center"><img src=
72 "/static_content/community/feature/paran_figure2.gif" alt="" /></p><br />
74 <p dir="ltr" style="text-align: left"><span style=
75 "font-weight: bold">Recent publications</span></p>
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79 Ben Chaim, A. and Paran, I. 2000. Genetic analysis of
80 quantitative traits in pepper (<span style=
81 "font-style: italic">Capsicum annuum</span>).
82 <span style="font-style: italic">J. Amer. Soc. Hort.
83 Sci</span>. 125: 66-70.</p>
86 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
87 Popovsky, S. and Paran, I. 2000. Molecular analysis of the
88 <span style="font-style: italic">Y</span> locus in pepper: its
89 relation to capsanthin-capsorubin synthase and to fruit color.
90 <span style="font-style: italic">Theor. Appl. Genet</span>.
94 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
95 Jahn, M., Paran, I., Hoffmann, K., Radwansky E., Livingstone,
96 K., Grube, R., Aftergoot, E., Lapidot, M. and Moyer, J. 2000.
97 Genetic mapping of the <span style=
98 "font-style: italic">Tsw</span> locus for resistance to the
99 <span style="font-style: italic">Tospovirus</span> tomato
100 spotted wilt virus in <span style=
101 "font-style: italic">Capsicum</span> spp. and its relationship
102 to the <span style="font-style: italic">Sw-5</span> gene for
103 resistance to the same pathogen in tomato. <span style=
104 "font-style: italic">Mol. Plant- Microbe Interaction</span>.
108 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
109 Thorup, T., Tanyolac, B., Livingstone, K., Popovsky, S., Paran,
110 I. and Jahn, M. 2000. Candidate gene analysis of organ
111 pigmentation loci in the Solanaceae. <span style=
112 "font-style: italic">Proc. Natl. Acad. Sci. USA</span> 97:
116 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
117 Ben Chaim, A., Grube, R., Lapidot, M., Jahn, M. and Paran, I.
118 2001a. Identification of quantitative trait loci associated
119 with resistance to cucumber mosaic virus in <span style=
120 "font-style: italic">Capsicum annuum</span>. <span style=
121 "font-style: italic">Theor. Appl. Genet</span>. 102:
125 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
126 Ben Chaim, A., Paran, I., Grube, R., Jahn, M., van Wijk, R. and
127 J. Peleman. 2001b. QTL mapping of fruit related traits in
128 pepper (<span style="font-style: italic">Capsicum
129 annuum</span>). <span style="font-style: italic">Theor. Appl.
130 Genet</span>. 102: 1016-1028.</p>
133 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
134 Blum, E., Liu, K., Mazourek, M., Jahn, M. and Paran, I. 2002.
135 Molecular mapping of the <span style=
136 "font-style: italic">C</span> locus for presence of pungency in
137 <span style="font-style: italic">Capsicum</span> fruit.
138 <span style="font-style: italic">Genome</span>. 45:
142 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
143 Ben Chaim, A., Borovsky, E., Rao, G. U., Tanyolac, B. and
144 Paran, I. 2003a. <span style="font-style: italic">fs3.1</span>:
145 a major fruit shape QTL conserved in <span style=
146 "font-style: italic">Capsicum</span>. <span style=
147 "font-style: italic">Genome</span>. 46: 1-9.</p>
150 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
151 Ben Chaim, A., Borovsky, E., De Jong, W. and Paran, I. 2003b.
152 Linkage of the <span style="font-style: italic">A</span> locus
153 for the presence of anthocyanin and <span style=
154 "font-style: italic">fs10.1</span>, a major fruit-shape QTL in
155 pepper. <span style="font-style: italic">Theor. Appl.
156 Genet</span>. 106: 889-894.</p>
159 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
160 Rao, G. U. and Paran, I. 2003a. Polygalacturonase: a candidate
161 gene for the soft flesh and deciduous fruit mutation in
162 <span style="font-style: italic">Capsicum</span>. <span style=
163 "font-style: italic">Plant Molecular Biology</span>. 51:
167 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
168 Rao, G. U. Ben Chaim, A., Borovsky, E. and Paran, I. 2003b.
169 Mapping of yield related QTLs in pepper in an inter-specific
170 cross of <span style="font-style: italic">Capsicum
171 annuum</span> and <span style="font-style: italic">C.
172 frutescens</span> <span style="font-style: italic">Theor. Appl.
173 Genet</span>. 106: 1457-1466.</p>
176 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
177 Blum, E., Mazourek, M., O'Connell, M., Curry, J., Thorup, T.,
178 Liu, K., Jahn, M. and Paran, I. 2003. Molecular mapping of
179 capsaicinoid biosynthesis genes and QTL analysis for
180 capsaicinoid content in <span style=
181 "font-style: italic">Capsicum</span>. <span style=
182 "font-style: italic">Theor. Appl. Genet</span>. In Press</p>
185 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
186 Paran, I<span style="font-weight: bold">.</span> 2003.
187 Marker-assisted utilization of exotic germplasm.
188 In: <span style="font-style: italic">Physiology and
189 Biotechnology Integration for Plant Breeding</span>. H. T.
190 Nguyen and A. Blum (Eds). Marcel Dekker, Inc., New York, New
194 "text-align: justify; margin-left: 0.3750in; text-indent: -0.3750in">
195 Paran, I. And Zamir. D. 2003. Quantitative traits in plants:
196 beyond the QTL. <span style="font-style: italic">Trends In
197 Genetics</span>. 19: 303-306.</p>
200 "text-align: justify; margin-left: 0.3750in"> </p>
202 <p dir="ltr" style="text-align: left; text-indent: 0.5000in">
205 <p dir="ltr" style="text-align: left"> </p>
207 <p dir="ltr" style="text-align: left"> </p>
209 <p dir="ltr" style="text-align: left"><span style=
210 "font-weight: bold">Main contact</span></p>Dr. Ilan Paran<br />
211 Department of Genetics and Plant Breeding<br />
212 Agricultural Research Organization<br />
213 The Volcani Center<br />
219 <p dir="ltr" style="text-align: left"> </p>Tel:
221 Fax: 972-3-9669642<br />
222 Email: iparan\@volcani.agri.gov.il<br />