Knowledge

Negative selection (natural selection)

Source đź“ť

1039: 121:
than those genes expressed exclusively in the diploid stage is referred to as the “masking theory”. This theory implies that purifying selection is more efficient in the haploid stage of the life cycle where fitness effects are more fully expressed than in the diploid stage of the life cycle.
83:
variation, producing a decrease in the level of variation surrounding the locus under selection. The incidental purging of non-deleterious alleles due to such spatial proximity to deleterious alleles is called
76:
being the unit of selection. In such a case, carriers of the harmful point mutation have fewer offspring each generation, reducing the frequency of the mutation in the gene pool.
768: 128:. Further evidence of strong purifying selection in haploid tissue-specific genes, in support of the masking theory, has been reported for the plant, 101:. Purging by genetic drift can remove primarily deeply recessive alleles, whereas natural selection can remove any type of deleterious alleles. 725: 565: 512:
Gerstein AC, Cleathero LA, Mandegar MA, Otto SP (March 2011). "Haploids adapt faster than diploids across a range of environments".
79:
In the case of strong negative selection on a locus, the purging of deleterious variants will result in the occasional removal of
1080: 1018: 773: 31: 17: 718: 636: 558: 813: 1054: 818: 181: 1109: 748: 711: 1104: 1073: 793: 551: 692: 465:"Strong Purifying Selection in Haploid Tissue-Specific Genes of Scots Pine Supports the Masking Theory" 914: 788: 207: 966: 124: 1114: 778: 687: 631: 90:. This effect increases with lower mutation rate but decreases with higher recombination rate. 1066: 763: 1005: 899: 894: 798: 610: 595: 186: 166: 151: 58: 851: 600: 156: 86: 62: 463:
Cervantes S, Kesälahti R, Kumpula TA, Mattila TM, Helanterä H, Pyhäjärvi T (August 2023).
8: 995: 871: 758: 734: 590: 574: 146: 69: 489: 464: 1099: 985: 981: 841: 437: 420: 396: 371: 347: 322: 303: 255: 230: 141: 94: 976: 971: 909: 836: 828: 803: 656: 582: 529: 525: 494: 442: 401: 352: 295: 291: 260: 118: 54: 38: 307: 122:
Evidence supporting the masking theory has been reported in the single-celled yeast
935: 846: 677: 641: 521: 484: 476: 432: 391: 383: 342: 334: 287: 250: 242: 129: 387: 338: 753: 682: 672: 615: 171: 80: 1050: 1000: 990: 904: 783: 73: 1093: 940: 930: 886: 651: 480: 231:"Inbreeding depression and purging in a haplodiploid: gender-related effects" 98: 956: 808: 533: 498: 446: 299: 264: 104: 405: 356: 646: 246: 176: 278:
Gulisija D, Crow JF (May 2007). "Inferring purging from pedigree data".
703: 543: 961: 421:"How are deleterious mutations purged? Drift versus nonrandom mating" 161: 323:"The effect of deleterious mutations on neutral molecular variation" 93:
Purifying selection can be split into purging by non-random mating (
1046: 1038: 50: 462: 114: 320: 511: 110: 321:
Charlesworth B, Morgan MT, Charlesworth D (August 1993).
105:
Negative selection in haploid compared to diploid tissue
68:
Purging of deleterious alleles can be achieved on the
425:
Evolution; International Journal of Organic Evolution
372:"Deleterious background selection with recombination" 280:
Evolution; International Journal of Organic Evolution
27:Selective removal of alleles that are deleterious 1091: 458: 456: 228: 1074: 719: 559: 453: 369: 277: 271: 222: 1081: 1067: 726: 712: 566: 552: 229:Tien NS, Sabelis MW, Egas M (March 2015). 488: 436: 395: 346: 254: 113:of an organism that are expressed in the 733: 573: 14: 1092: 1019:Index of evolutionary biology articles 418: 370:Hudson RR, Kaplan NL (December 1995). 707: 547: 205: 65:that arise through random mutations. 1033: 61:through the purging of deleterious 32:Negative selection (disambiguation) 24: 438:10.1111/j.0014-3820.2003.tb01512.x 72:level, with as little as a single 25: 1126: 637:Models of nucleotide substitution 1037: 526:10.1111/j.1420-9101.2010.02188.x 292:10.1111/j.1558-5646.2007.00088.x 117:stage are under more efficient 819:Constructive neutral evolution 505: 412: 363: 314: 199: 13: 1: 192: 1053:. You can help Knowledge by 769:Fisher's fundamental theorem 49:is the selective removal of 7: 794:Coefficient of relationship 388:10.1093/genetics/141.4.1605 339:10.1093/genetics/134.4.1289 135: 10: 1131: 1032: 693:Nonsynonymous substitution 419:GlĂ©min S (December 2003). 182:Mutation–selection balance 29: 1014: 949: 923: 885: 860: 827: 789:Coefficient of inbreeding 741: 665: 624: 581: 967:Evolutionary game theory 749:Hardy–Weinberg principle 125:Saccharomyces cerevisiae 779:Shifting balance theory 688:Synonymous substitution 632:Models of DNA evolution 764:Linkage disequilibrium 481:10.1093/molbev/msad183 1006:Quantitative genetics 915:Balding–Nichols model 900:Population bottleneck 895:Small population size 799:Selection coefficient 611:Stabilizing selection 596:Directional selection 187:Stabilizing selection 167:Fluctuating selection 152:Directional selection 63:genetic polymorphisms 59:stabilising selection 57:. This can result in 877:Background selection 864:on genomic variation 862:Effects of selection 814:Population structure 601:Disruptive selection 247:10.1038/hdy.2014.106 208:"Negative selection" 157:Disruptive selection 109:The idea that those 87:background selection 30:For other uses, see 1110:Population genetics 996:Population genomics 872:Genetic hitchhiking 759:Identity by descent 735:Population genetics 666:Molecular processes 591:Balancing selection 575:Molecular evolution 147:Balancing selection 70:population genetics 47:purifying selection 18:Purifying selection 1105:Classical genetics 982:Landscape genetics 606:Negative selection 142:Assortative mating 95:assortative mating 43:negative selection 1062: 1061: 1027: 1026: 977:Genetic genealogy 972:Fitness landscape 701: 700: 583:Natural selection 119:natural selection 97:) and purging by 39:natural selection 16:(Redirected from 1122: 1083: 1076: 1069: 1041: 1034: 936:J. B. S. Haldane 728: 721: 714: 705: 704: 678:Gene duplication 642:Allele frequency 568: 561: 554: 545: 544: 538: 537: 509: 503: 502: 492: 460: 451: 450: 440: 416: 410: 409: 399: 367: 361: 360: 350: 318: 312: 311: 275: 269: 268: 258: 226: 220: 219: 212:Nature Education 206:Loewe L (2008). 203: 21: 1130: 1129: 1125: 1124: 1123: 1121: 1120: 1119: 1090: 1089: 1088: 1087: 1030: 1028: 1023: 1010: 945: 919: 881: 865: 863: 856: 823: 754:Genetic linkage 737: 732: 702: 697: 683:Silent mutation 673:Gene conversion 661: 620: 616:Selective sweep 577: 572: 542: 541: 510: 506: 461: 454: 431:(12): 2678–87. 417: 413: 368: 364: 333:(4): 1289–303. 319: 315: 276: 272: 227: 223: 204: 200: 195: 172:Genetic purging 138: 107: 35: 28: 23: 22: 15: 12: 11: 5: 1128: 1118: 1117: 1115:Genetics stubs 1112: 1107: 1102: 1086: 1085: 1078: 1071: 1063: 1060: 1059: 1042: 1025: 1024: 1022: 1021: 1015: 1012: 1011: 1009: 1008: 1003: 1001:Phylogeography 998: 993: 991:Microevolution 988: 979: 974: 969: 964: 959: 953: 951: 950:Related topics 947: 946: 944: 943: 938: 933: 927: 925: 921: 920: 918: 917: 912: 907: 905:Founder effect 902: 897: 891: 889: 883: 882: 880: 879: 874: 868: 866: 861: 858: 857: 855: 854: 849: 844: 839: 833: 831: 825: 824: 822: 821: 816: 811: 806: 801: 796: 791: 786: 784:Price equation 781: 776: 774:Neutral theory 771: 766: 761: 756: 751: 745: 743: 739: 738: 731: 730: 723: 716: 708: 699: 698: 696: 695: 690: 685: 680: 675: 669: 667: 663: 662: 660: 659: 657:Fay and Wu's H 654: 649: 644: 639: 634: 628: 626: 622: 621: 619: 618: 613: 608: 603: 598: 593: 587: 585: 579: 578: 571: 570: 563: 556: 548: 540: 539: 504: 452: 411: 382:(4): 1605–17. 362: 313: 286:(5): 1043–51. 270: 221: 197: 196: 194: 191: 190: 189: 184: 179: 174: 169: 164: 159: 154: 149: 144: 137: 134: 106: 103: 74:point mutation 26: 9: 6: 4: 3: 2: 1127: 1116: 1113: 1111: 1108: 1106: 1103: 1101: 1098: 1097: 1095: 1084: 1079: 1077: 1072: 1070: 1065: 1064: 1058: 1056: 1052: 1049:article is a 1048: 1043: 1040: 1036: 1035: 1031: 1020: 1017: 1016: 1013: 1007: 1004: 1002: 999: 997: 994: 992: 989: 987: 983: 980: 978: 975: 973: 970: 968: 965: 963: 960: 958: 955: 954: 952: 948: 942: 941:Sewall Wright 939: 937: 934: 932: 929: 928: 926: 922: 916: 913: 911: 908: 906: 903: 901: 898: 896: 893: 892: 890: 888: 887:Genetic drift 884: 878: 875: 873: 870: 869: 867: 859: 853: 850: 848: 845: 843: 840: 838: 835: 834: 832: 830: 826: 820: 817: 815: 812: 810: 807: 805: 802: 800: 797: 795: 792: 790: 787: 785: 782: 780: 777: 775: 772: 770: 767: 765: 762: 760: 757: 755: 752: 750: 747: 746: 744: 740: 736: 729: 724: 722: 717: 715: 710: 709: 706: 694: 691: 689: 686: 684: 681: 679: 676: 674: 671: 670: 668: 664: 658: 655: 653: 650: 648: 645: 643: 640: 638: 635: 633: 630: 629: 627: 623: 617: 614: 612: 609: 607: 604: 602: 599: 597: 594: 592: 589: 588: 586: 584: 580: 576: 569: 564: 562: 557: 555: 550: 549: 546: 535: 531: 527: 523: 520:(3): 531–40. 519: 515: 508: 500: 496: 491: 486: 482: 478: 474: 470: 469:Mol Biol Evol 466: 459: 457: 448: 444: 439: 434: 430: 426: 422: 415: 407: 403: 398: 393: 389: 385: 381: 377: 373: 366: 358: 354: 349: 344: 340: 336: 332: 328: 324: 317: 309: 305: 301: 297: 293: 289: 285: 281: 274: 266: 262: 257: 252: 248: 244: 241:(3): 327–32. 240: 236: 232: 225: 217: 213: 209: 202: 198: 188: 185: 183: 180: 178: 175: 173: 170: 168: 165: 163: 160: 158: 155: 153: 150: 148: 145: 143: 140: 139: 133: 131: 127: 126: 120: 116: 112: 102: 100: 99:genetic drift 96: 91: 89: 88: 82: 77: 75: 71: 66: 64: 60: 56: 52: 48: 44: 40: 33: 19: 1055:expanding it 1044: 1029: 957:Biogeography 931:R. A. Fisher 876: 809:Heritability 742:Key concepts 605: 517: 513: 507: 472: 468: 428: 424: 414: 379: 375: 365: 330: 326: 316: 283: 279: 273: 238: 234: 224: 215: 211: 201: 123: 108: 92: 85: 78: 67: 46: 42: 36: 910:Coalescence 647:Ka/Ks ratio 514:J Evol Biol 177:Koinophilia 55:deleterious 1094:Categories 852:Ecological 842:Artificial 652:Tajima's D 193:References 130:Scots Pine 1100:Selection 962:Evolution 829:Selection 162:Dysgenics 53:that are 1047:genetics 986:genomics 924:Founders 534:21159002 499:37565532 490:10457172 447:14761049 376:Genetics 327:Genetics 308:24302475 300:17492959 265:25407077 235:Heredity 218:(1): 59. 136:See also 837:Natural 804:Fitness 406:8601498 397:1206891 357:8375663 348:1205596 256:4815584 115:haploid 51:alleles 847:Sexual 625:Models 532:  497:  487:  445:  404:  394:  355:  345:  306:  298:  263:  253:  81:linked 1045:This 475:(8). 304:S2CID 111:genes 1051:stub 984:and 530:PMID 495:PMID 443:PMID 402:PMID 353:PMID 296:PMID 261:PMID 522:doi 485:PMC 477:doi 433:doi 392:PMC 384:doi 380:141 343:PMC 335:doi 331:134 288:doi 251:PMC 243:doi 239:114 45:or 37:In 1096:: 528:. 518:24 516:. 493:. 483:. 473:40 471:. 467:. 455:^ 441:. 429:57 427:. 423:. 400:. 390:. 378:. 374:. 351:. 341:. 329:. 325:. 302:. 294:. 284:61 282:. 259:. 249:. 237:. 233:. 214:. 210:. 132:. 41:, 1082:e 1075:t 1068:v 1057:. 727:e 720:t 713:v 567:e 560:t 553:v 536:. 524:: 501:. 479:: 449:. 435:: 408:. 386:: 359:. 337:: 310:. 290:: 267:. 245:: 216:1 34:. 20:)

Index

Purifying selection
Negative selection (disambiguation)
natural selection
alleles
deleterious
stabilising selection
genetic polymorphisms
population genetics
point mutation
linked
background selection
assortative mating
genetic drift
genes
haploid
natural selection
Saccharomyces cerevisiae
Scots Pine
Assortative mating
Balancing selection
Directional selection
Disruptive selection
Dysgenics
Fluctuating selection
Genetic purging
Koinophilia
Mutation–selection balance
Stabilizing selection
"Negative selection"
"Inbreeding depression and purging in a haplodiploid: gender-related effects"

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑