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Polygenic disease

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Title: PowerPoint Author: CHEN Feng Last modified by: Created Date: 8/22/2000 12:22:03 AM Document presentation format: – PowerPoint PPT presentation

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Title: Polygenic disease


1
??? ??????
Polygenic disease
2
??? ?????
???????????
  • ????(qualitative trait)

3
??? ?????
???????????
  • ????(qualitative trait)

4
??? ?????
???????????
  • ????(qualitative trait)
  • ??????????,??????????,????????,
    ????????????????,???????????(qualitative
    character)? ????????????

5
??? ?????
???????????
  • ????(qualitative trait)
  • ????(quantitative trait)

6
? ? ? ?
7
??? ?????
???????????
  • ????(quantitative trait)
  • ???????????????????,??????,??????????????,??
    ????????(quantitative character)??????????????????
    ??

8
??? ?????
???????????
???????
9
???????
? ?????????????,???????,????????? ???????????????
?,????? ?????????????????????,??????(minor
gene),??????????????,??????????,?????????????(addi
tive effect),???????????(additive
gene) ???????????????? ???????????????????,?????
????
10
??? ?????
???????????
???????
??????????
11
????????
?? ???? ????
AABB
AABB
?1? ????
AABB
?2?
AB AB AB AB
AB AABB AABB AABB AABB
AB AABB AABB AABB AABB
AB AABB AABB AABB AABB
AB AABB AABB AABB AABB
12
????????
AABB
AABB
AABB
AABB
AABB
AABB
AABB
AABB
AABB
13
P AABBCC
AABBCC
F1 AABBCC
14
????????
15
????????
  • ??????(??)?????
  • ????????1???????
  • ??????????

16
??? ??????
17
(No Transcript)
18
??? ??????
????????
  • ???(susceptibility) ?????????????????????????????
    ?
  • ???(liability) ??????????????????????????????????
    ?????????

19
??? ??????
????????
  • ????????
  • ??(threshold)???????????????

???
??
20
µ
21
??? ??????
????????
?????
?????,?????????????????????,??????????????????(her
itability),?????????????()????
22
???? ?????() ??????????() ???()
?? 4.0 20 80
????? 1.0 16 80
?????? 48 2030 62
????? 4.0 8 37
?????? 0.2 7(?????) 70
2(?????)
????? 0.2 25 75
????? 23 1015 35
??? 2.5 7 65
??????? 0.3 2(?????) 75
10(?????)
???????? 0.07 4 70
?????? 0.1 3 68
?????? 0.02 2(?????) 80
8(?????)
???? 0.5 2 60
??? 0.3 4 60
???? 0.17 4 76
?? 0.04 2 76
23
??? ??????
????????
?????
?????????????
  • ??????????
  • ??????????(????)???

24
?7-2 ????????(??)?????????????
???? ????? ?????????
???? ????? ???? ???? ???? ????
???? 0.001 400 40 7 3 ??? 0.001 300 25 5 2 ???????? 0.002 200 25 3 2 ??????? 0.005 80 10 5 1.5 ???? 0.001 400 40 7 3 ??? 0.001 300 25 5 2 ???????? 0.002 200 25 3 2 ??????? 0.005 80 10 5 1.5
25
??? ??????
????????
?????
?????????????
  • ??????????
  • ??????????(????)???
  • ?????????(??)???

26
?7-3 ????????(??)?????
???? ???
???? ?? ??
???????? 0.015 0.007 ?????? 0.008 0.015 ??? 0.005 0.002 ??? 0.003 0.0025 ???? 0.0017 0.001 ???????? 0.015 0.007 ?????? 0.008 0.015 ??? 0.005 0.002 ??? 0.003 0.0025 ???? 0.0017 0.001
27
??? ??????
????????
?????
?????????????
  • ??????????
  • ??????????(????)???
  • ?????????(??)???
  • ???????????????????

28
??? ??????
????????
?????
?????????????
???????????????
29
?????????????
(?)?????????
30
?????????????
(?)?????????
????????????????,?????? ???????
31
?????????????
(?)?????????
(?)????????
????,????????????,???????????
32
?7-4 ?????????????????????()
????? ????? 0 0 0 1 1 1 2 2 2
? ? ??? ????? ????? ????? ????? ????? ????? ????? ????? ?????
??? () 0 1 2 0 1 2 0 1 2
100 1 7 14 11 24 34 63 65 67
1.0 80 1 6 14 8 18 28 41 47 52
50 1 4 8 4 9 15 15 21 26
100 0.1 4 11 5 16 26 62 63 64
0.1 80 0.1 3 10 4 14 23 60 61 62
50 0.1 1 3 1 3 9 7 11 15
33
?????????????
(?)?????????
(?)????????
(?)??????
??????????????????????????????????,???????????
?
34
??????
35
??????
36
?????????????
(?)?????????
(?)????????
(?)??????
(?)??????????
37
Carter??
??????????????????????,????????????????
??????????,?????????????????,????????????,???????
???????,???Carter?? ?
38
Carter ??
??
???????
39
???????
40
????????
41
????????
42
Carter ??
??
????????
43
??? ????????? ?????
  • ?????
  • ??????????,???????????????????????????????????????
    ??????????
  • ????,????????????????????????????????????????

44
??? ????????? ?????
  • ???????????????????????
  • (?)???????(Lod?)
  • Lod????????????????,???????????????,???????????,Lo
    d??gt1,????Lod??gt3,????Lod??lt-2,?????
  • ??????????????????????????????

45
???????????????????????
  • (?)???????(Lod?)
  • (?)????????
  • ????????????????????????????????????????????
    ???,????????????????????
  • ??????????????,???????????????????????????
    ??????????????????????,??????????????

46
?7-5 ???????????????????
???? ?? ??lod? ???? ???()
IDDM1 6q21 7.3 3.1 42 IDDM2 11p15 2.1 1.3 40 IDDM3 15q26 ? ? ? IDDM4 11q13 3.4 1.3 ? IDDM5 6q24-q27 2.0 ? ?
47
???????????????????????
  • (?)???????(Lod?)
  • (?)????????
  • (?)????
  • ???????????????????,??????????????????
    ??,???????
  • ????????????????????????????????????????????
    ???????????????????????

48
???????????????????????
  • (?)???????(Lod?)
  • (?)????????
  • (?)????
  • (?)????
  • ?????????,?????????????????????
  • ???????????????

49
??? ????????? ?????
  • ???????????????????????
  • ?????????????? ??
  • (?)??????
  • (?)????????

50
??????
  • 1????????????
  • ????????????????????????????????
  • 2?????????DNA?????????????,?????????????????
  • 3???????????????
  • 4???????????????
  • ???????????????????????????????????????
    ?,???????????????????

51
??????
  • ??????????????????
  • ??
  • ?????????????????,????????????
  • ??????????????????,???????????,????????
    ????????????????
  • ????????????

52
????????
  • ????????????????????????????????????????????(??)
    ??????????????(?????????)????????,????????,??????
    ????,??????????????????????????????
  • ?????????????????????????????????
  • ?????????????????????????????????

53
??? ????????? ?????
  • ???????????????????????
  • ?????????????? ??
  • ?????????????

54
??????
  • ????????????????
  • ???????????
  • ???????????????????????2p14-2p23???

55
??????????
  • 1???????(AGT)??
  • 2?????????(ACE)??
  • 3?ß2-????????
  • 5?a-??????(ADD1)
  • 6?G-??ß3-???(GNß3)

56
?????
  • ?????,????????????????????????????????????,???????
    ??,???????
  • ??????????
  • 1????????
  • 2?????????????
  • 3?????????

57
????
  • ??????,6??8??22??????????????????????,?5-HT2a?DRD3
    ?NOTCH4?COMT?DISCI?DISCII?????????????
  • 6??16??18??21??22?? X????????????????????,?
    SERT????????????
  • 1??10??19???????????????????????,?A2M?ACE?APOE????
    ?????????

58
???
  • MEF2A??????????????????????
  • MEF2A ?????????,????????????????????????

59
???
  • ??
  • ?????(?????????,IDDM)
  • ?????(???????,NIDDM)

60
?????
  • ????????,??HLA??????????
  • ????,???HLA-A1?C1?B56?DR4?DQ8??????????,??50?????
    ????HLA-????(DR?DQ?DP)?
  • HLA-DQ B1?57????????(????????????)?HLA-DQ
    A1??52?????????????

61
?????
  • ???IDDM?????
  • IDDM 2(11p15)
  • IDDM3(15q26)
  • IDDM4(11q13)
  • IDDM5(6q25)
  • IDDM7(2q31)
  • IDDM8(6q27)
  • IDDM11(14q24.3-q31)
  • IDDM12(2q33??CTLA4)
  • IDDM13(2q34)
  • GCK3(?????3,7p)

62
?????
  • ?????????????????????ß?????????2?????????????????
    ????????????
  • ???????????????????????9?????9p21???

63
?????
  • 1???????????????????
  • 2?????????????????

64
????????
  • 1???????????????????????Carter??
  • 2??????????
  • 3??????????????????????????

65
???????
  • ??? ???
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